US20040093010A1 - Guide wire with embolic filtering attachment - Google Patents
Guide wire with embolic filtering attachment Download PDFInfo
- Publication number
- US20040093010A1 US20040093010A1 US10/260,718 US26071802A US2004093010A1 US 20040093010 A1 US20040093010 A1 US 20040093010A1 US 26071802 A US26071802 A US 26071802A US 2004093010 A1 US2004093010 A1 US 2004093010A1
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- United States
- Prior art keywords
- guide wire
- filter assembly
- coil
- disposed
- helical coil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/011—Instruments for their placement or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2002/018—Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0073—Quadric-shaped
- A61F2230/008—Quadric-shaped paraboloidal
Definitions
- the present invention relates generally to filtering devices used, for example, when an interventional procedure is being performed in a stenosed or occluded region of a body vessel to capture embolic material that may be created and released into the vessel during the procedure.
- the present invention is more particularly directed to a separately deliverable embolic filter assembly having an expandable basket and filter that can be attached to the distal tip coil of a conventional guide wire via a guide wire connector.
- the balloon is then deflated to a small profile so that the dilatation catheter can be withdrawn from the patient's vasculature and the blood flow resumed through the dilated artery.
- the above-described procedure is typical, it is not the only method used in angioplasty.
- Atherectomy is yet another method of treating a stenosed body vessel in which cutting blades are rotated to shave the deposited plaque from the arterial wall.
- a vacuum catheter is usually used to capture the shaved plaque or thrombus from the blood stream during this procedure.
- a physician can implant an intravascular prosthesis for maintaining vascular patency, commonly known as a stent, inside the artery across the lesion.
- the stent can be crimped tightly onto the balloon portion of the catheter and transported in its delivery diameter through the patient's vasculature. At the deployment site, the stent is expanded to a larger diameter, often by inflating the balloon portion of the catheter.
- Another technique which has had some success utilizes a filter or trap downstream from the treatment site to capture embolic debris before it reaches the smaller blood vessels downstream.
- a filter in the patient's vasculature during treatment of the vascular lesion can reduce the presence of the embolic debris in the bloodstream.
- embolic filters are usually delivered in a collapsed position through the patient's vasculature and then expanded to trap the embolic debris.
- Some of these embolic filters are self expanding and utilize a restraining sheath which maintains the expandable filter in a collapsed position until it is ready to be expanded within the patient's vasculature.
- the physician can retract the proximal end of the restraining sheath to expose the expandable filter, causing the filter to expand at the desired location.
- the filter can be collapsed, and the filter (with the trapped embolic debris) can then be removed from the vessel. While a filter can be effective in capturing embolic material, the filter still needs to be collapsed and removed from the vessel. During this step, there is a possibility that trapped embolic debris can backflow through the inlet opening of the filter and enter the bloodstream as the filtering system is being collapsed and removed from the patient. Therefore, it is important that any captured embolic debris remain trapped within this filter so that particles are not released back into the body vessel.
- Some prior art expandable filters vessel are attached to the distal end of a guide wire or guide wire-like member which allows the filtering device to be steered in the patient's vasculature as the guide wire is positioned by the physician.
- the embolic filter can be deployed to capture embolic debris.
- the guide wire can then be used by the physician to deliver interventional devices, such as a balloon angioplasty dilatation catheter or a stent delivery catheter, to perform the interventional procedure in the area of treatment.
- interventional devices such as a balloon angioplasty dilatation catheter or a stent delivery catheter, to perform the interventional procedure in the area of treatment.
- a recovery sheath can be delivered over the guide wire using over-the-wire or rapid exchange (RX) techniques to collapse the expanded filter for removal from the patient's vasculature.
- RX rapid exchange
- Some prior art filtering devices utilize a construction in which the expandable filter is permanently affixed to the guide wire.
- the device When the expandable filter is permanently attached to the guide wire, the device may have added stiffness and therefore may lose some “front-line” capability, which is the ability to negotiate the often tortuous anatomy through which it is being delivered.
- the stiffness of a combined expandable filter and guide wire may possibly prevent the device from reaching the desired target area within the patient's vasculature.
- it is possible for the deployed filtering portion of the device to rotate or move with the guide wire in the event that the guide wire is rotated by the physician during usage. As a result, there is a possibility that the deployed filtering portion of the device could scrape the vessel wall possibly causing trauma.
- Some prior art filtering devices utilize a separate filtering assembly which can be delivered over the guide wire and attaches to a special fitting located near the distal end of the guide wire.
- these filtration devices require the fitting to be placed near the distal end of the guide wire which can possibly hinder the ability to steer the guide wire and reach the target area in the patient's vasculature.
- These particular filter systems also require additional manufacturing procedures to properly mount the fitting onto the steerable guide wire. As such, the presence of the fitting near the distal end of the guide wire may cause unwanted problems during delivery of the guide wire through the patient's vasculature.
- a filtering device that can be attached to the distal end of a guide wire after the guide wire has been initially deployed into the target region of a patient.
- the filter portion of the device should be easy to deliver, easily attachable to the guide wire and should eliminate the need for special fittings to be placed on the guide wire. Also, it would be beneficial if the filtering portion is rotatably mounted onto the guide wire to prevent the deployed filtering portion from rotating and possible scraping the vessel wall once deployed. The present invention satisfies these and other needs.
- the present invention provides a separately deliverable filter assembly having an expandable basket (also referred to as a “cage”) and a filter element that can be attached to the distal coil tip of a conventional guide wire.
- the present invention is designed to capture embolic debris created during the performance of a therapeutic interventional procedure, such as a balloon angioplasty or stenting procedure, or other unwanted particulates entrained in the fluid of a body vessel.
- the present invention allows the physician to deliver the guide wire with “front-line” capabilities to steer through the tortuous anatomy, while still being able to provide filtering protection in the form of a separately deliverable attachment.
- An embolic filtering device made in accordance with the present invention utilizes a filter assembly having an expandable basket capable of being disposed for traveling over the guide wire.
- the filter assembly has a proximal end and a distal end with a guide wire connector coupled to the distal end. Once in proper position, the guide wire connector is able to be coupled to the distal tip coil of the guide wire.
- the expandable basket can be made from a self-expanding material, for example, nickel-titanium alloy (NiTi), and may include struts capable of expanding from a collapsed position or configuration having a first delivery diameter to an expanded or deployed position or configuration having a second implanted diameter.
- the filter element may be made from an embolic-capturing material and is attached to the expandable basket such that it moves with the basket between the collapsed and deployed positions.
- Guide wire connectors of the present invention are easily adapted for attachment on a number of different configurations of filter assemblies and can be attached to a variety of different guide wires.
- the guide wire used in the present invention may include steerable guide wires having distal tip coils which allow the guide wire connector to be screwed onto the tip coil. Also, any guide wire with coil spacing large enough to allow a guide wire connector having spring-loaded tabs to engage the tip coils may be implemented.
- Another guide wire that may be used in the present invention is found in U.S. Pat. No. 6,132,389 issued to Cornish et al., which discloses a proximally tapered guide wire tip coil.
- One embodiment of the present invention uses a variation of the coil tip design found in Cornish et al. patent, where the proximally tapered guide wire tip coil is stretched somewhat to create a matching coil to which the guide wire connector is attached.
- the guide wire connector associated with the filter assembly is a connection coil capable of being screwed onto the helical coil of the guide wire.
- the connection coil may have a similar pitch to the tip coil on the guide wire.
- the guide wire connector associated with the filter assembly includes at least one spring-loaded tab adapted to grasp a distal tip coil on the guide wire.
- a pair of spring-loaded tabs are used to grasp the distal tip coil of the guide wire to lock the filter assembly at the distal end of the guide wire.
- the spring-loaded tabs are designed to latch onto the coils of the guide wire.
- the connector also may include three or more spring-loaded tabs designed to grasp and lock onto the guide wire tip coil.
- the present invention is able to capture embolic debris or other particulates entrained in the fluid of a blood vessel of a patient during, for example, an interventional procedure such as an angioplasty procedure or stenting procedure.
- a guide wire having a distal tip coil would be inserted into the body vessel and steered into the target area.
- the filter assembly which has a guide wire connector disposed at its distal end, would be delivered along the guide wire until it reaches the distal end of the guide wire.
- the guide wire connector would then be secured to the helical coil of the guide wire.
- the type of connection made at the distal coil tip will depend on the type of guide wire connector associated with the filter assembly.
- the expandable basket of the filter assembly is maintained in a collapsed position by a delivery sheath which extends co-axially over the filter assembly.
- a rapid exchange delivery sheath could be used in which an offset lumen is utilized to maintain the filter assembly in a collapsed position.
- the delivery sheath, along with the collapsed filter assembly can be delivered over the guide wire until the guide wire connector of the filter assembly locks the filter assembly to the guide wire.
- the filter assembly can be placed in its expanded position simply by retracting the delivery sheath proximally, allowing the expandable basket to self deploy.
- the delivery sheath can be removed from the guide wire to allow an interventional device to be delivered over the guide wire to the area of treatment.
- the interventional device is removed from the guide wire and a recovery sheath can be delivered along the guide wire and over the filter assembly to return it to its collapsed position.
- the guide wire, along with the sheath and filter assembly, can be then removed from the patient.
- the delivery sheath may be rotated in order to interconnect the connecting coil onto the helical coil of the guide wire. It is contemplated that the guide wire could be rotated itself or simultaneously rotated with the delivery sheath to screw the connecting coil onto the tip coil of the guide wire. In another embodiment in which the connector includes spring-loaded tabs, the delivery sheath can be moved in a distal direction forcing the spring-loaded tabs to grasp one of the coils of the guide wire.
- the guide wire could be moved in a proximal direction while holding the delivery sheath steady to force the spring-loaded tabs into a recess formed between adjacent coils.
- the distal tip coil of the guide wire may include a rotating portion mounted onto the guide wire and used for attachment to the filter assembly.
- the filter assembly will be free to spin or rotate relative to the guide wire.
- the filter assembly will remain stationary in a deployed position within the patient even if the guide wire is rotated by the user.
- the guide wire includes a rotating coil section rotatably mounted on the guide wire. The rotating coil section can be placed between a pair of stationary coil sections which cooperate to form a composite tip coil.
- the present invention is not limited by the embodiments described herein.
- the present invention can be used in arteries, veins, and other body vessels. By altering the size of this design, it also may be suitable for peripheral and neurological applications.
- Other features and advantages of the present invention will become more apparent from the following detailed description of the invention, when taken in conjunction with the accompanying exemplary drawings.
- FIG. 1 is an elevational view, partially in cross-section and partially fragmented, of a guide wire with an embolic filter assembly embodying features of the present invention.
- FIG. 2 is an elevational view of one embodiment of a filter assembly, similar to the one shown in FIG. 1, having a connection coil disposed on a distal end.
- FIG. 3 is an elevational view of another embodiment of a filter assembly having a pair of spring-loaded tabs disposed on the distal end.
- FIG. 4 is an elevational view, partially in cross section, of a conventional guide wire including a helical coil.
- FIG. 5 is an enlarged view of a distal portion of a guide wire having a proximally tapered stretched helical coil.
- FIG. 6 is an elevational view, partially in cross-section of one embodiment of a filter assembly in a collapsed position and including a connection coil attached to the helical coil of a guide wire.
- FIG. 7A is an elevational view, partially in cross-section of one embodiment of a filter assembly in a collapsed position and including spring-loaded tabs attached to the helical coil of a guide wire.
- FIG. 7B is an elevational view, partially in cross-section of another embodiment of a filter assembly including spring-loaded tabs which extend proximally for attachment to the helical coil of a guide wire.
- FIG. 7C is an elevational view, partially in cross-section of another embodiment of a filter assembly including spring-loaded tabs which extend proximally for attachment to the helical coil of a guide wire.
- FIG. 8 is an elevational view, partially in cross-section, of a filter assembly in a collapsed position attached to the helical coil of a guide wire, within a body vessel at a downstream location from an area to be treated.
- FIG. 9 is an elevational view, partially in cross-section, similar to that shown in FIG. 8, wherein the filter assembly is deployed in its expanded position within the body vessel for filtering purposes.
- FIG. 10A is an elevational view, partially in cross-section, of the end an expandable basket of a filter assembly (shown without the filter member) in a deployed position and attached to a rotating coil section forming a portion of the distal tip coil of a guide wire.
- FIG. 10B is an elevational view of the distal end of filter assembly which can be permanently mounted to the rotating coil section forming a portion of the distal tip coil of a guide wire.
- FIG. 11 is an elevational view of one particular embodiment of a filter assembly, similar to the one shown in FIG. 10, which can be used in accordance with the present invention.
- FIG. 12 is an elevational view of a distal portion of a guide wire having a rotating coil section.
- FIG. 1 illustrates one particular embodiment of an embolic filtering device 20 incorporating features of the present invention.
- This embolic filtering device 20 is designed to capture, for example, embolic debris which may be created and released into a body vessel during an interventional procedure.
- the embolic filtering device also can be used to filter any unwanted particles entrained in the fluid of a body vessel, such as large microspheres of a therapeutic agent which may be released into the vessel during a localized drug delivery procedure.
- the embolic filtering device 20 includes an expandable filter assembly 22 having a self-expanding basket or cage 24 and a filter element 26 attached thereto.
- the filter assembly 22 has a proximal or first end 28 and a distal or second end 30 , and in the embodiment shown in FIG. 1, there is a first sleeve or collar 32 disposed on the first end and a second sleeve or collar 34 disposed on the second end.
- the first and second sleeves 32 and 34 can be both cylindrically shaped.
- a guide wire connector 36 can be attached to the second end 30 of the filter assembly 22 , and as shown in FIG. 1, the guide wire connector is directly attached to the distal or second sleeve 34 .
- the expandable filter assembly 22 is engaged with an elongated (solid or hollow) cylindrical tubular shaft, such as a steerable guide wire 40 having a distal tip coil 42 .
- the guide wire 40 has a proximal end (not shown in FIG. 1) which extends outside the patient and is delivered by the physician across a target area in the patient's vasculature.
- a restraining or delivery sheath 44 delivers the filter assembly 22 separately along the guide wire 40 in order to maintain the expandable filter assembly 22 in its collapsed position until it is ready to be deployed within the patient's vasculature.
- the physician may rotate the delivery sheath 44 to attach the guide wire connector 36 to the helical tip coil 42 of the guide wire 40 .
- the expandable filter assembly 22 can be deployed by the physician by simple retracting the delivery sheath 44 proximally to expose the expandable filter assembly. Once the restraining sheath is retracted, the self-expanding basket 24 immediately begins to expand within the body vessel, causing the filter element 26 to expand as well.
- the guide wire connector is a connection coil 50 disposed on the second sleeve 34 .
- the connection coil 50 is able to be screwed onto the helical tip coil 42 of the guide wire 40 .
- the expandable filter assembly 22 includes a tubular member or shaft 52 connected to the first and second ends 28 and 30 and is slidably disposed upon the guide wire 40 .
- One of these first or second ends 28 should include a slip connection to allow the basket to elongate when it collapses and shorten when it expands.
- tubular member 52 could be fixed at both ends 28 and 30 and be made from a coil that can lengthen and shorten as needed.
- This shaft 52 helps to maintain the integrity of the filter assembly as the filter assembly is being retracted by a recovery sheath.
- the filter assembly 22 and delivery sheath 44 are separately rotatable on the guide wire 40 during delivery to the distal end of the guide wire. Even when the connection coil 50 is coupled to the helical coil 42 of the guide wire 40 , the filter assembly 22 can be separately rotatable independent from the guide wire. This can be accomplished by having the filter assembly 22 rotate independently of the second sleeve 34 , which would be joined to the guide wire 40 through the coil connector 50 .
- the connector 36 is a spring-loaded tab 54 , and more specifically a pair of spring-loaded tabs 54 disposed opposite one another on the second sleeve 34 .
- the spring-loaded tabs on the distal end 30 of the filter assembly 22 would catch one of the coils of the tip coil 42 of the guide wire 40 .
- One advantage of using spring-loaded tabs 54 is that the guide wire connector does not have to be rotated to be attached to the tip coil of the guide wire.
- the embolic filtering device 20 can be constructed with a conventional guide wire 40 having a tip coil 42 disposed at a distal end.
- a conventional guide wire 40 is shown.
- the guide wire 40 depicted in FIG. 4 has an elongate core member 60 with a proximal section 62 and a distal section 64 .
- This embodiment shows the distal section 64 of the guide wire 40 having at least one distally tapered portion 66 .
- a flexible body member or helical coil 42 is disposed around the distal section 64 , and the helical coil has a proximal end 68 and a distal end 70 .
- the helical coil 42 has a relatively constant diameter from the proximal end 68 to the distal end 70 .
- the helical coil 42 is attached to the guide wire 40 at both the proximal end 68 and the distal end 70 .
- the physician can simply apply a small amount of proximal force to portion 68 to cause a portion of the tip coil to expand longitudinally, thus creating space between coils which enhance the ability of the spring-like tabs to catch and hold onto the tip coil.
- the helical coil 42 has a tapered proximal end 72 , shown in FIG. 5, which is similar to the proximally tapered coil found in U.S. Pat. No. 6,132,389 issued to Cornish et al.
- a tapered angle 74 of the tapered proximal end 72 is the angle the tangent to the tapered section 66 makes with the longitudinal axis of the helical coil 40 , can be from about 0.1 to 10° and preferably about 0.5 to 2°.
- the distal end 70 of the helical coil 42 typically has an outer diameter approximately equal to the nominal outer diameter of the proximal section 62 of the elongate core member 60 .
- the tapered proximal end 72 shown in FIG. 5 differs from the proximal tapered helical coil found in the Cornish et al. patent in that the tapered proximal end is somewhat stretched, forming spaces or gaps 76 in between individual coils. This embodiment allows the connection coil to screw onto the stretched proximal tapered helical coil and lock in place within the gaps 76 .
- FIG. 6 the embodiment of the present invention which uses a connection coil 50 disposed on the second sleeve 34 to lock the filter assembly into place is shown in greater detail.
- This figure also shows the filter assembly 22 being held in a collapsed position inside the delivery sheath 44 .
- the delivery sheath is rotated clockwise, screwing the connection coil 50 onto the helical coil 42 .
- the guide wire could be rotated counter-clockwise or rotated simultaneously with the sheath to screw the connection coil 50 onto the helical coil 42 .
- the delivery sheath 44 can then be withdrawn, allowing the filter assembly to expand.
- the present invention is shown in which the filter assembly 22 includes spring-loaded tabs 54 disposed on the second sleeve 34 and locked into place on the tapered proximal end 72 of the helical coil 42 .
- the spring-loaded tabs 54 are caught inside the helical coil 42 , however, the spring-loaded tabs may be designed to grab around the outside of the helical coil.
- the delivery sheath 44 may have to be forced or pushed proximally into the helical coil of the guide wire.
- the guide wire 40 may be forced or pulled distally into the spring-loaded tabs 54 to hook the spring-loaded tabs onto the helical coil. As with the embodiment shown in FIG. 6, once the spring-loaded tabs 54 are secured to the guide wire 40 , the delivery sheath 44 may then be withdrawn so the filter assembly may expand.
- FIG. 7B An alternative embodiment of the filter assembly of FIG. 7A is shown in FIG. 7B.
- the filter assembly includes spring-loaded tabs 54 disposed on the second sleeve 34 which extend proximally rather than distally, as is shown in FIG. 7A.
- the spring-loaded tabs 54 will lock into place on the helical coil 42 .
- FIG. 7C Another alternative design is shown in which the spring-loaded tabs 54 are again disposed to extend proximally from the second sleeve 34 . Both of the embodiments shown in FIGS.
- 7B and 7C have spring-loaded tabs facing proximally which will tend to wedge tighter once the filter assembly 22 comes in contact with the helical coil 42 . Additionally, these particular embodiments may help to hold the filter assembly 22 tighter onto the guide wire via the helical coil 42 in the event that the filter assembly 22 is ever caught in the patient's anatomy and the guide wire is pulled proximally.
- the embolic filtering device 20 is shown within an artery 80 or other body vessel of the patient.
- This portion of the artery 80 has an area of treatment 82 in which, for example, atherosclerotic plaque 84 has built up against the inside wall 86 of the artery 80 .
- the physician would first insert the guide wire 40 into the vasculature of the patient, positioning the distal section 64 of the guide wire across the area of treatment 82 with the distal end and helical coil 42 located downstream from the area of treatment.
- the delivery sheath 44 delivers the filter assembly 22 separately along the guide wire 40 in order to maintain the expandable filter assembly 22 in its collapsed position.
- the physician manipulates the sheath 44 and/or the guide wire 40 to join the connector 36 , in this embodiment the connection coil 50 , to the helical coil 42 .
- the expandable filter assembly 22 is expanded by the physician by simply retracting the delivery sheath 44 proximally to expose the expandable filter assembly.
- the self-expanding cage 24 immediately begins to expand within the body vessel, causing the filter element 26 to expand as well.
- the embolic filtering device 20 is shown in its expanded position within the patient's artery 80 . Any embolic debris 90 created during an interventional procedure will be released into the bloodstream and will enter the filter assembly 22 located downstream from the area of treatment 82 . Once the procedure is completed and the embolic debris 90 is collected in the filter element 26 , the filter assembly 22 can be collapsed by a recovery sheath 44 which slides over the filter assembly, allowing the embolic filter device 20 to be removed from the patient's vasculature.
- the proximal end of the filter assembly may move somewhat distally as the end of the recovery sheath contacts the assembly. This may occur, for example, in the embodiment shown in FIG. 1, since the proximal end of the filter assembly is not physically attached to the guide wire, but rather is slidably disposed on the guide wire. This may not occur if the expandable basket has sufficient axial stiffness.
- a recovery sheath having a large inner diameter may be used to capture a greater portion of the proximal end of the filter assembly.
- the recovery sheath may help to prevent the proximal end from moving distally as the sheath slides over the filter assembly.
- Another way to prevent the end from moving is to utilize a tubular member or shaft, such as is shown in the embodiments of FIGS. 2 and 3.
- the tubular shaft 52 provides axial rigidity which prevents the proximal end of the filter assembly from being pushed distally as a recovery sheath extends over the filter assembly.
- the distal connection of the tubular shaft 52 and basket should be a sliding fit in order to allow the basket to open and close.
- the tubular shaft 52 used in accordance with the embodiments of FIGS. 2 and 3 is just one example of adding stiffness in a longitudinal direction to enhance the ability of the filter assembly to be collapsed by the recovery sheath.
- the guide wire 92 has a composite tip coil 94 including a rotating coil section 96 which is rotatably mounted to the core of the guide wire 92 .
- This rotating coil section is disposed between a proximal coil section 98 and a distal coil section 100 which are both fixed to the core of the guide wire.
- the proximal coil section 98 and the distal coil section 100 act as stop fittings to maintain the rotating coil segment 96 longitudinally fixed there between, yet allows the rotating coil segment to rotate relative to the guide wire.
- proximal coil section 98 and distal coil section 100 cooperatively form a composite tip coil which can be bent to a J-shaped configuration, or other configuration, as is well-known in the art, to aid in the steering of the guide wire through the patient's anatomy.
- the guide wire connector 36 is adapted to engage and attach to the rotating coil section 96 which forms the composite tip coil 94 .
- the guide wire connector 36 which can be used in accordance with this embodiment can be either the connection coil described above or the spring-loaded tabs described in conjunction with the embodiment of FIG. 3.
- the rotating coil section 96 is disposed between the proximal coil section 98 and the distal coil section 100 .
- the outer diameter of the proximal coil section 98 may be somewhat smaller than the outer diameter of the rotating coil section 96 to allow the distal end of the filter assembly to extend thereover when the connection to the rotating coil section is being performed.
- the gaps between the coils of the rotating coil section 96 may be increased to provide gaps which help the tabs to latch onto the coils of the rotating coil section.
- the filter assembly 22 may include an obturator 102 made from a soft material such as PEBAX 40D which provides an atraumatic tip to the filter assembly as it is being advanced over the guide wire within the patient's vasculature.
- the soft-tipped obturator 102 helps to prevent the distal end of the filter from scraping the walls of the body vessel as it is being advanced therethrough.
- This same type of obturator can be used to in accordance with any of the other embodiments of the filter assembly used in accordance with the present invention.
- the distal end of the filter assembly 22 can be soldered directly to the rotating coil section 96 to create a one-piece embolic filtering device which can also be used during the performance of interventional procedures for capturing any embolic debris which may be created. If the distal end of the filter assembly is permanently attached to the rotating coil section 96 , then the filtering assembly would not be able to be delivered separately once the guide wire has been steered into the target area in the patient's vasculature, but rather, would move with the distal end of guide wire along with the delivery sheath which maintains it in its collapsed position. Such a composite filter/guide wire could be delivered into a patient's vasculature for particulate filtration.
- the guide wire connector 36 made in accordance with the present invention has been shown as it is connected to the distal sleeve which forms part of the expandable basket of the filter assembly.
- the guide wire connector also could be formed on the tubular shaft 52 used in accordance with the embodiments of the filter assemblies of FIGS. 2 and 3. It also can be a separate piece which is bonded or otherwise attached to the distal end of any conventional filtering assembly.
- the guide wire connector 36 can take on many different shapes and forms other than those shown in the particular figures disclosed herein to perform the same function as that disclosed herein. It should be appreciated that modifications can be made to the guide wire, filter assembly and guide wire connector without departing from the spirit and scope of the present invention.
- guide wire connectors could be placed on the proximal end of the filter assembly, rather than the distal end.
- the guide wire connectors are shown attached to the distal most end of the filter assemblies in the particular embodiments described herein. However, similar type connectors could be placed on the proximal end of the filter assembly without departing from the spirit and scope of the present invention.
- the expandable basket of the present invention can be made in many ways.
- One particular method of making the basket is to cut a thin-walled tubular member, such as nickel-titanium hypotube, to remove portions of the tubing in the desired pattern for each strut, leaving relatively untouched the portions of the tubing which form the structure.
- the tubing may be cut into the desired pattern by means of a machine-controlled laser.
- the tubing used to make the basket could possibly be made of suitable biocompatible material, such as spring steel.
- Elgiloy is another material which could possibly be used to manufacture the basket.
- very elastic polymers possibly could be used to manufacture the basket.
- the strut size is often very small, so the tubing from which the basket is made may have a small diameter.
- the tubing has an outer diameter on the order of about 0.020-0.040 inches in the unexpanded condition.
- the basket can be cut from large diameter tubing. Fittings are attached to both ends of the lased tube to form the final basket geometry.
- the wall thickness of the tubing is usually about 0.076 mm (0.001-0.010 inches).
- the strut width and/or depth at the bending points will be less.
- the dimensions of the tubing may be correspondingly larger. While it is preferred that the basket be made from laser cut tubing, those skilled in the art will realize that the basket can be laser cut from a flat sheet and then rolled up in a cylindrical configuration with the longitudinal edges welded to form a cylindrical member.
- the tubing is put in a rotatable collet fixture of a machine-controlled apparatus for positioning the tubing relative to a laser.
- the tubing is then rotated and moved longitudinally relative to the laser which is also machine-controlled.
- the laser selectively removes the material from the tubing by ablation and a pattern is cut into the tube.
- the tube is therefore cut into the discrete pattern of the finished struts.
- the basket can be laser cut much like a stent is laser cut. Details on how the tubing can be cut by a laser are found in U.S. Pat. No. 5,759,192 (Saunders), U.S. Pat. No. 5,780,807 (Saunders) and U.S. Pat. No. 6,131,266 (Saunders) which have been assigned to Advanced Cardiovascular Systems, Inc.
- the process of cutting a pattern for the strut assembly into the tubing generally is automated except for loading and unloading the length of tubing.
- a pattern can be cut in tubing using a CNC-opposing collet fixture for axial rotation of the length of tubing, in conjunction with CNC X/Y table to move the length of tubing axially relative to a machine-controlled laser as described.
- the entire space between collets can be patterned using the CO 2 or Nd:YAG laser set-up.
- the program for control of the apparatus is dependent on the particular configuration used and the pattern to be ablated in the coding.
- a suitable composition of nickel-titanium which can be used to manufacture the strut assembly of the present invention is approximately 55% nickel and 45% titanium (by weight) with trace amounts of other elements making up about 0.5% of the composition.
- the austenite transformation temperature is between about 0° C. and 20° C. in order to achieve superelasticity at human body temperature. The austenite temperature is measured by the bend and free recovery tangent method.
- the upper plateau strength is about a minimum of 60,000 psi with an ultimate tensile strength of a minimum of about 155,000 psi.
- the permanent set (after applying 8% strain and unloading), is less than approximately 0.5%.
- the breaking elongation is a minimum of 10%. It should be appreciated that other compositions of nickel-titanium can be utilized, as can other self-expanding alloys, to obtain the same features of a self-expanding basket made in accordance with the present invention.
- the basket of the present invention can be laser cut from a tube of nickel-titanium (Nitinol) whose transformation temperature is below body temperature. After the strut pattern is cut into the hypotube, the tubing is expanded and heat treated to be stable at the desired final diameter. The heat treatment also controls the transformation temperature of the basket such that it is super elastic at body temperature. The transformation temperature is at or below body temperature so that the basket is superelastic at body temperature.
- the basket is usually implanted into the target vessel which is smaller than the diameter of the basket in the expanded position so that the struts of the basket apply a force to the vessel wall to maintain the basket in its expanded position. It should be appreciated that the basket can be made from either superelastic, stress-induced martensite NiTi or shape-memory NiTi.
- the basket could also be manufactured by laser cutting a large diameter tubing of nickel-titanium which would create the basket in its expanded position. Thereafter, the formed basket could be placed in its unexpanded position by backloading the basket into a restraining sheath which will keep the device in the unexpanded position until it is ready for use. If the basket is formed in this manner, there would be no need to heat treat the tubing to achieve the final desired diameter. This process of forming the basket could be implemented when using superelastic or linear-elastic nickel-titanium.
- the struts forming the proximal struts can be made from the same or a different material than the distal struts. In this manner, more or less flexibility for the proximal struts can be obtained.
- the distal struts can be manufactured through the lazing process described above with the proximal struts being formed separately and attached. Suitable fastening means such as adhesive bonding, brazing, soldering, welding and the like can be utilized in order to connect the struts to the distal assembly.
- Suitable materials for the struts include superelastic materials, such as nickel-titanium, spring steel, Elgiloy, along with polymeric materials which are sufficiently flexible and bendable.
- the polymeric material which can be utilized to create the filtering element include, but is not limited to, polyurethane and Gortex, a commercially available material. Other possible suitable materials include ePTFE.
- the material can be elastic or non-elastic.
- the wall thickness of the filtering element can be about 0.00050-0.0050 inches. The wall thickness may vary depending on the particular material selected.
- the material can be made into a cone or similarly sized shape utilizing blow-mold technology or dip molding technology.
- the openings can be any different shape or size.
- a laser, a heated rod or other process can be utilized to create to perfusion openings in the filter material. The holes, would of course be properly sized to catch the particular size of embolic debris of interest.
- Holes can be lazed in a spinal pattern with some similar pattern which will aid in the re-wrapping of the media during closure of the device.
- the filter material can have a “set” put in it much like the “set” used in dilatation balloons to make the filter element re-wrap more easily when placed in the collapsed position.
- the materials which can be utilized for the restraining sheath can be made from polymeric material such as cross-linked HDPE.
- This sheath can alternatively be made from a material such as polyolifin which has sufficient strength to hold the compressed strut assembly and has relatively low frictional characteristics to minimize any friction between the filter assembly and the sheath. Friction can be further reduced by applying a coat of silicone lubricant, such as Microglide®, to the inside surface of the restraining sheath before the sheath is placed over the filter assembly. Silicone also can be placed on the filter material as well.
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Abstract
Description
- The present invention relates generally to filtering devices used, for example, when an interventional procedure is being performed in a stenosed or occluded region of a body vessel to capture embolic material that may be created and released into the vessel during the procedure. The present invention is more particularly directed to a separately deliverable embolic filter assembly having an expandable basket and filter that can be attached to the distal tip coil of a conventional guide wire via a guide wire connector.
- Numerous procedures have been developed for treating occluded blood vessels to allow blood to flow without obstruction. Such procedures usually involve the percutaneous introduction of an interventional device into the lumen of the artery, usually by a catheter. One widely known and medically accepted procedure is balloon angioplasty in which an inflatable balloon is introduced within the stenosed region of the blood vessel to dilate the occluded vessel. The balloon dilatation catheter is initially inserted into the patient's arterial system and is advanced and manipulated into the area of stenosis in the artery. The balloon is inflated to compress the plaque and press the vessel wall radially outward to increase the diameter of the blood vessel, resulting in increased blood flow. The balloon is then deflated to a small profile so that the dilatation catheter can be withdrawn from the patient's vasculature and the blood flow resumed through the dilated artery. As should be appreciated by those skilled in the art, while the above-described procedure is typical, it is not the only method used in angioplasty.
- Another procedure is laser angioplasty which utilizes a laser to ablate the stenosis by super heating and vaporizing the deposited plaque. Atherectomy is yet another method of treating a stenosed body vessel in which cutting blades are rotated to shave the deposited plaque from the arterial wall. A vacuum catheter is usually used to capture the shaved plaque or thrombus from the blood stream during this procedure.
- In the procedures of the kind referenced above, abrupt reclosure may occur or restenosis of the artery may develop over time, which may require another angioplasty procedure, a surgical bypass operation, or some other method of repairing or strengthening the area. To reduce the likelihood of the occurrence of reclosure and to strengthen the area, a physician can implant an intravascular prosthesis for maintaining vascular patency, commonly known as a stent, inside the artery across the lesion. The stent can be crimped tightly onto the balloon portion of the catheter and transported in its delivery diameter through the patient's vasculature. At the deployment site, the stent is expanded to a larger diameter, often by inflating the balloon portion of the catheter.
- The above non-surgical interventional procedures, when successful, avoid the necessity of major surgical operations. However, there is one common problem which can become associated with all of these non-surgical procedures, namely, the potential release of embolic debris into the bloodstream that can occlude distal vasculature and cause significant health problems to the patient. For example, during deployment of a stent, it is possible that the metal struts of the stent can cut into the stenosis and create particles of plaque that can travel downstream and lodge somewhere in the patient's vascular system. Pieces of plaque material are sometimes generated during a balloon angioplasty procedure and are released into the bloodstream. Additionally, while complete vaporization of plaque is the intended goal during laser angioplasty, sometimes particles are not fully vaporized and enter the bloodstream. Likewise, not all of the emboli created during an atherectomy procedure may be drawn into the vacuum catheter and, as a result, may enter the bloodstream as well.
- When any of the above-described procedures are performed in the carotid arteries, the release of emboli into the circulatory system can be extremely dangerous and sometimes fatal to the patient. Debris carried by the bloodstream to distal vessels of the brain can cause cerebral vessels to occlude, resulting in a stroke, and in some cases, death. Therefore, although cerebral percutaneous transluminal angioplasty has been performed in the past, the number of procedures performed has been somewhat limited due to the justifiable fear of an embolic stroke occurring should embolic debris enter the bloodstream and block vital downstream blood passages.
- Medical devices have been developed to attempt to deal with the problem created when debris or fragments enter the circulatory system following vessel treatment utilizing any one of the above-identified procedures. One approach which has been attempted is the cutting of any debris into minute sizes which pose little chance of becoming occluded in major vessels within the patient's vasculature. However, it is often difficult to control the size of the fragments which are formed, and the potential risk of vessel occlusion still exists, making such a procedure in the carotid arteries a high-risk proposition.
- Other techniques include the use of catheters with a vacuum source which provides temporary suction to remove embolic debris from the bloodstream. However, as mentioned above, there can be complications associated with such systems if the catheter does not remove all of the embolic material from the bloodstream. Also, a powerful suction could cause trauma to the patient's vasculature.
- Another technique which has had some success utilizes a filter or trap downstream from the treatment site to capture embolic debris before it reaches the smaller blood vessels downstream. The placement of a filter in the patient's vasculature during treatment of the vascular lesion can reduce the presence of the embolic debris in the bloodstream. Such embolic filters are usually delivered in a collapsed position through the patient's vasculature and then expanded to trap the embolic debris. Some of these embolic filters are self expanding and utilize a restraining sheath which maintains the expandable filter in a collapsed position until it is ready to be expanded within the patient's vasculature. The physician can retract the proximal end of the restraining sheath to expose the expandable filter, causing the filter to expand at the desired location. Once the procedure is completed, the filter can be collapsed, and the filter (with the trapped embolic debris) can then be removed from the vessel. While a filter can be effective in capturing embolic material, the filter still needs to be collapsed and removed from the vessel. During this step, there is a possibility that trapped embolic debris can backflow through the inlet opening of the filter and enter the bloodstream as the filtering system is being collapsed and removed from the patient. Therefore, it is important that any captured embolic debris remain trapped within this filter so that particles are not released back into the body vessel.
- Some prior art expandable filters vessel are attached to the distal end of a guide wire or guide wire-like member which allows the filtering device to be steered in the patient's vasculature as the guide wire is positioned by the physician. Once the guide wire is in proper position in the vasculature, the embolic filter can be deployed to capture embolic debris. The guide wire can then be used by the physician to deliver interventional devices, such as a balloon angioplasty dilatation catheter or a stent delivery catheter, to perform the interventional procedure in the area of treatment. After the procedure is completed, a recovery sheath can be delivered over the guide wire using over-the-wire or rapid exchange (RX) techniques to collapse the expanded filter for removal from the patient's vasculature.
- Some prior art filtering devices utilize a construction in which the expandable filter is permanently affixed to the guide wire. When the expandable filter is permanently attached to the guide wire, the device may have added stiffness and therefore may lose some “front-line” capability, which is the ability to negotiate the often tortuous anatomy through which it is being delivered. The stiffness of a combined expandable filter and guide wire may possibly prevent the device from reaching the desired target area within the patient's vasculature. Also, in such a design, it is possible for the deployed filtering portion of the device to rotate or move with the guide wire in the event that the guide wire is rotated by the physician during usage. As a result, there is a possibility that the deployed filtering portion of the device could scrape the vessel wall possibly causing trauma. Therefore, when such a filtering device is utilized, it is important that the proximal end of the guide wire remains fixed since rotation could possible be transmitted to the deployed filtering portion of the device. However, since a physician normally delivers interventional devices along the guide wire after the filter portion has been deployed, some manipulation of the guide wire takes place an it may be difficult to prevent at least some rotation at the proximal end of the guide wire.
- Some prior art filtering devices utilize a separate filtering assembly which can be delivered over the guide wire and attaches to a special fitting located near the distal end of the guide wire. However, these filtration devices require the fitting to be placed near the distal end of the guide wire which can possibly hinder the ability to steer the guide wire and reach the target area in the patient's vasculature. These particular filter systems also require additional manufacturing procedures to properly mount the fitting onto the steerable guide wire. As such, the presence of the fitting near the distal end of the guide wire may cause unwanted problems during delivery of the guide wire through the patient's vasculature.
- Therefore, what has been needed is a filtering device that can be attached to the distal end of a guide wire after the guide wire has been initially deployed into the target region of a patient. The filter portion of the device should be easy to deliver, easily attachable to the guide wire and should eliminate the need for special fittings to be placed on the guide wire. Also, it would be beneficial if the filtering portion is rotatably mounted onto the guide wire to prevent the deployed filtering portion from rotating and possible scraping the vessel wall once deployed. The present invention satisfies these and other needs.
- The present invention provides a separately deliverable filter assembly having an expandable basket (also referred to as a “cage”) and a filter element that can be attached to the distal coil tip of a conventional guide wire. In use, the present invention is designed to capture embolic debris created during the performance of a therapeutic interventional procedure, such as a balloon angioplasty or stenting procedure, or other unwanted particulates entrained in the fluid of a body vessel. The present invention allows the physician to deliver the guide wire with “front-line” capabilities to steer through the tortuous anatomy, while still being able to provide filtering protection in the form of a separately deliverable attachment.
- An embolic filtering device made in accordance with the present invention utilizes a filter assembly having an expandable basket capable of being disposed for traveling over the guide wire. The filter assembly has a proximal end and a distal end with a guide wire connector coupled to the distal end. Once in proper position, the guide wire connector is able to be coupled to the distal tip coil of the guide wire. The expandable basket can be made from a self-expanding material, for example, nickel-titanium alloy (NiTi), and may include struts capable of expanding from a collapsed position or configuration having a first delivery diameter to an expanded or deployed position or configuration having a second implanted diameter. The filter element may be made from an embolic-capturing material and is attached to the expandable basket such that it moves with the basket between the collapsed and deployed positions. Guide wire connectors of the present invention are easily adapted for attachment on a number of different configurations of filter assemblies and can be attached to a variety of different guide wires.
- The guide wire used in the present invention may include steerable guide wires having distal tip coils which allow the guide wire connector to be screwed onto the tip coil. Also, any guide wire with coil spacing large enough to allow a guide wire connector having spring-loaded tabs to engage the tip coils may be implemented. Another guide wire that may be used in the present invention is found in U.S. Pat. No. 6,132,389 issued to Cornish et al., which discloses a proximally tapered guide wire tip coil. One embodiment of the present invention uses a variation of the coil tip design found in Cornish et al. patent, where the proximally tapered guide wire tip coil is stretched somewhat to create a matching coil to which the guide wire connector is attached.
- In one particular embodiment of the present invention, the guide wire connector associated with the filter assembly is a connection coil capable of being screwed onto the helical coil of the guide wire. When a guide wire with a proximally tapered distal tip coil is used, the connection coil may have a similar pitch to the tip coil on the guide wire.
- In another embodiment of the present invention, the guide wire connector associated with the filter assembly includes at least one spring-loaded tab adapted to grasp a distal tip coil on the guide wire. In another particular embodiment, a pair of spring-loaded tabs are used to grasp the distal tip coil of the guide wire to lock the filter assembly at the distal end of the guide wire. In this regard, the spring-loaded tabs are designed to latch onto the coils of the guide wire. The connector also may include three or more spring-loaded tabs designed to grasp and lock onto the guide wire tip coil.
- In use, the present invention is able to capture embolic debris or other particulates entrained in the fluid of a blood vessel of a patient during, for example, an interventional procedure such as an angioplasty procedure or stenting procedure. Initially, a guide wire having a distal tip coil would be inserted into the body vessel and steered into the target area. Once the guide wire is delivered across the area of treatment, the filter assembly, which has a guide wire connector disposed at its distal end, would be delivered along the guide wire until it reaches the distal end of the guide wire. The guide wire connector would then be secured to the helical coil of the guide wire. The type of connection made at the distal coil tip will depend on the type of guide wire connector associated with the filter assembly. In order to transfer the filter assembly along the guide wire, the expandable basket of the filter assembly is maintained in a collapsed position by a delivery sheath which extends co-axially over the filter assembly. Alternatively, a rapid exchange delivery sheath could be used in which an offset lumen is utilized to maintain the filter assembly in a collapsed position. The delivery sheath, along with the collapsed filter assembly, can be delivered over the guide wire until the guide wire connector of the filter assembly locks the filter assembly to the guide wire. The filter assembly can be placed in its expanded position simply by retracting the delivery sheath proximally, allowing the expandable basket to self deploy. As the struts of the basket expand radially, so does the filter element which will now be deployed within the body vessel to collect embolic debris and particles that may be released into the bloodstream as the physician performs the interventional procedure. The delivery sheath can be removed from the guide wire to allow an interventional device to be delivered over the guide wire to the area of treatment. After the procedure is completed, the interventional device is removed from the guide wire and a recovery sheath can be delivered along the guide wire and over the filter assembly to return it to its collapsed position. The guide wire, along with the sheath and filter assembly, can be then removed from the patient.
- When an overlapping connection coil is utilized, the delivery sheath may be rotated in order to interconnect the connecting coil onto the helical coil of the guide wire. It is contemplated that the guide wire could be rotated itself or simultaneously rotated with the delivery sheath to screw the connecting coil onto the tip coil of the guide wire. In another embodiment in which the connector includes spring-loaded tabs, the delivery sheath can be moved in a distal direction forcing the spring-loaded tabs to grasp one of the coils of the guide wire. It is contemplated that once the sheath delivers the filter assembly to the distal end of the guide wire, the guide wire could be moved in a proximal direction while holding the delivery sheath steady to force the spring-loaded tabs into a recess formed between adjacent coils.
- In an alternative embodiment, the distal tip coil of the guide wire may include a rotating portion mounted onto the guide wire and used for attachment to the filter assembly. In this manner, once the guide wire connector is attached to the rotating coil section of the guide wire, the filter assembly will be free to spin or rotate relative to the guide wire. The filter assembly will remain stationary in a deployed position within the patient even if the guide wire is rotated by the user. In another particular embodiment, the guide wire includes a rotating coil section rotatably mounted on the guide wire. The rotating coil section can be placed between a pair of stationary coil sections which cooperate to form a composite tip coil.
- It is to be understood that the present invention is not limited by the embodiments described herein. Alternatively, the present invention can be used in arteries, veins, and other body vessels. By altering the size of this design, it also may be suitable for peripheral and neurological applications. Other features and advantages of the present invention will become more apparent from the following detailed description of the invention, when taken in conjunction with the accompanying exemplary drawings.
- FIG. 1 is an elevational view, partially in cross-section and partially fragmented, of a guide wire with an embolic filter assembly embodying features of the present invention.
- FIG. 2 is an elevational view of one embodiment of a filter assembly, similar to the one shown in FIG. 1, having a connection coil disposed on a distal end.
- FIG. 3 is an elevational view of another embodiment of a filter assembly having a pair of spring-loaded tabs disposed on the distal end.
- FIG. 4 is an elevational view, partially in cross section, of a conventional guide wire including a helical coil.
- FIG. 5 is an enlarged view of a distal portion of a guide wire having a proximally tapered stretched helical coil.
- FIG. 6 is an elevational view, partially in cross-section of one embodiment of a filter assembly in a collapsed position and including a connection coil attached to the helical coil of a guide wire.
- FIG. 7A is an elevational view, partially in cross-section of one embodiment of a filter assembly in a collapsed position and including spring-loaded tabs attached to the helical coil of a guide wire.
- FIG. 7B is an elevational view, partially in cross-section of another embodiment of a filter assembly including spring-loaded tabs which extend proximally for attachment to the helical coil of a guide wire.
- FIG. 7C is an elevational view, partially in cross-section of another embodiment of a filter assembly including spring-loaded tabs which extend proximally for attachment to the helical coil of a guide wire.
- FIG. 8 is an elevational view, partially in cross-section, of a filter assembly in a collapsed position attached to the helical coil of a guide wire, within a body vessel at a downstream location from an area to be treated.
- FIG. 9 is an elevational view, partially in cross-section, similar to that shown in FIG. 8, wherein the filter assembly is deployed in its expanded position within the body vessel for filtering purposes.
- FIG. 10A is an elevational view, partially in cross-section, of the end an expandable basket of a filter assembly (shown without the filter member) in a deployed position and attached to a rotating coil section forming a portion of the distal tip coil of a guide wire.
- FIG. 10B is an elevational view of the distal end of filter assembly which can be permanently mounted to the rotating coil section forming a portion of the distal tip coil of a guide wire.
- FIG. 11 is an elevational view of one particular embodiment of a filter assembly, similar to the one shown in FIG. 10, which can be used in accordance with the present invention.
- FIG. 12 is an elevational view of a distal portion of a guide wire having a rotating coil section.
- Turning now to the drawings, in which like reference numerals represent like or corresponding elements in the drawings, FIG. 1 illustrates one particular embodiment of an
embolic filtering device 20 incorporating features of the present invention. Thisembolic filtering device 20 is designed to capture, for example, embolic debris which may be created and released into a body vessel during an interventional procedure. The embolic filtering device also can be used to filter any unwanted particles entrained in the fluid of a body vessel, such as large microspheres of a therapeutic agent which may be released into the vessel during a localized drug delivery procedure. - The
embolic filtering device 20 includes anexpandable filter assembly 22 having a self-expanding basket orcage 24 and afilter element 26 attached thereto. Thefilter assembly 22 has a proximal orfirst end 28 and a distal orsecond end 30, and in the embodiment shown in FIG. 1, there is a first sleeve orcollar 32 disposed on the first end and a second sleeve orcollar 34 disposed on the second end. The first andsecond sleeves guide wire connector 36 can be attached to thesecond end 30 of thefilter assembly 22, and as shown in FIG. 1, the guide wire connector is directly attached to the distal orsecond sleeve 34. In this figure, theexpandable filter assembly 22 is engaged with an elongated (solid or hollow) cylindrical tubular shaft, such as asteerable guide wire 40 having adistal tip coil 42. Theguide wire 40 has a proximal end (not shown in FIG. 1) which extends outside the patient and is delivered by the physician across a target area in the patient's vasculature. A restraining ordelivery sheath 44 delivers thefilter assembly 22 separately along theguide wire 40 in order to maintain theexpandable filter assembly 22 in its collapsed position until it is ready to be deployed within the patient's vasculature. In the particular embodiment shown in FIG. 1, the physician may rotate thedelivery sheath 44 to attach theguide wire connector 36 to thehelical tip coil 42 of theguide wire 40. Then, once connected to theguide wire 40, theexpandable filter assembly 22 can be deployed by the physician by simple retracting thedelivery sheath 44 proximally to expose the expandable filter assembly. Once the restraining sheath is retracted, the self-expandingbasket 24 immediately begins to expand within the body vessel, causing thefilter element 26 to expand as well. - One embodiment of the embolic filtering device is shown in FIG. 2 in which the guide wire connector is a
connection coil 50 disposed on thesecond sleeve 34. Theconnection coil 50 is able to be screwed onto thehelical tip coil 42 of theguide wire 40. In the embodiment of FIG. 2, theexpandable filter assembly 22 includes a tubular member orshaft 52 connected to the first and second ends 28 and 30 and is slidably disposed upon theguide wire 40. One of these first or second ends 28 should include a slip connection to allow the basket to elongate when it collapses and shorten when it expands. Alternatively,tubular member 52 could be fixed at both ends 28 and 30 and be made from a coil that can lengthen and shorten as needed. This same structure can be applied to any of the other embodiments described herein. Thisshaft 52 helps to maintain the integrity of the filter assembly as the filter assembly is being retracted by a recovery sheath. Thefilter assembly 22 anddelivery sheath 44 are separately rotatable on theguide wire 40 during delivery to the distal end of the guide wire. Even when theconnection coil 50 is coupled to thehelical coil 42 of theguide wire 40, thefilter assembly 22 can be separately rotatable independent from the guide wire. This can be accomplished by having thefilter assembly 22 rotate independently of thesecond sleeve 34, which would be joined to theguide wire 40 through thecoil connector 50. - Referring now to FIG. 3, another embodiment is shown where the
connector 36 is a spring-loadedtab 54, and more specifically a pair of spring-loadedtabs 54 disposed opposite one another on thesecond sleeve 34. In operation, the spring-loaded tabs on thedistal end 30 of thefilter assembly 22 would catch one of the coils of thetip coil 42 of theguide wire 40. It is also contemplated that there could be one or more spring-loaded tabs disposed on thesecond sleeve 34 that would catch the coil of theguide wire 40. One advantage of using spring-loadedtabs 54 is that the guide wire connector does not have to be rotated to be attached to the tip coil of the guide wire. - The
embolic filtering device 20 can be constructed with aconventional guide wire 40 having atip coil 42 disposed at a distal end. Referring now to FIG. 4, aconventional guide wire 40 is shown. Theguide wire 40 depicted in FIG. 4 has anelongate core member 60 with aproximal section 62 and adistal section 64. This embodiment shows thedistal section 64 of theguide wire 40 having at least one distally taperedportion 66. A flexible body member orhelical coil 42 is disposed around thedistal section 64, and the helical coil has aproximal end 68 and adistal end 70. In this embodiment thehelical coil 42 has a relatively constant diameter from theproximal end 68 to thedistal end 70. Thehelical coil 42 is attached to theguide wire 40 at both theproximal end 68 and thedistal end 70. In the event that the spacing between coils is too tight, i.e., the tip is too stiff and will not bend through tortuous anatomy, the physician can simply apply a small amount of proximal force toportion 68 to cause a portion of the tip coil to expand longitudinally, thus creating space between coils which enhance the ability of the spring-like tabs to catch and hold onto the tip coil. - In another embodiment however, the
helical coil 42 has a taperedproximal end 72, shown in FIG. 5, which is similar to the proximally tapered coil found in U.S. Pat. No. 6,132,389 issued to Cornish et al. A taperedangle 74 of the taperedproximal end 72 is the angle the tangent to the taperedsection 66 makes with the longitudinal axis of thehelical coil 40, can be from about 0.1 to 10° and preferably about 0.5 to 2°. Thedistal end 70 of thehelical coil 42 typically has an outer diameter approximately equal to the nominal outer diameter of theproximal section 62 of theelongate core member 60. Details of a guide wire having a proximally tapered helical coil can be found in the Cornish et al. patent. The taperedproximal end 72 shown in FIG. 5 differs from the proximal tapered helical coil found in the Cornish et al. patent in that the tapered proximal end is somewhat stretched, forming spaces orgaps 76 in between individual coils. This embodiment allows the connection coil to screw onto the stretched proximal tapered helical coil and lock in place within thegaps 76. When using a proximally tapered helical coil and aconnection coil 50 on thefilter assembly 22, it may be preferred that both have a similar pitch. The increased gap between adjacent coils again helps to enhance the ability of the spring-loaded tabs to latch onto a coil(s). - Referring now to FIG. 6, the embodiment of the present invention which uses a
connection coil 50 disposed on thesecond sleeve 34 to lock the filter assembly into place is shown in greater detail. This figure also shows thefilter assembly 22 being held in a collapsed position inside thedelivery sheath 44. In order to connect thefilter assembly 22 to thehelical coil 42 of theguide wire 40, the delivery sheath is rotated clockwise, screwing theconnection coil 50 onto thehelical coil 42. It is also contemplated that the guide wire could be rotated counter-clockwise or rotated simultaneously with the sheath to screw theconnection coil 50 onto thehelical coil 42. Once thefilter assembly 22 is secured onto theguide wire 40, thedelivery sheath 44 can then be withdrawn, allowing the filter assembly to expand. - Now referring to FIG. 7A, the present invention is shown in which the
filter assembly 22 includes spring-loadedtabs 54 disposed on thesecond sleeve 34 and locked into place on the taperedproximal end 72 of thehelical coil 42. The spring-loadedtabs 54 are caught inside thehelical coil 42, however, the spring-loaded tabs may be designed to grab around the outside of the helical coil. In order to hook the spring-loadedtabs 54 into or around thehelical coil 42, thedelivery sheath 44 may have to be forced or pushed proximally into the helical coil of the guide wire. It is also contemplated that theguide wire 40 may be forced or pulled distally into the spring-loadedtabs 54 to hook the spring-loaded tabs onto the helical coil. As with the embodiment shown in FIG. 6, once the spring-loadedtabs 54 are secured to theguide wire 40, thedelivery sheath 44 may then be withdrawn so the filter assembly may expand. - An alternative embodiment of the filter assembly of FIG. 7A is shown in FIG. 7B. In this particular embodiment, the filter assembly includes spring-loaded
tabs 54 disposed on thesecond sleeve 34 which extend proximally rather than distally, as is shown in FIG. 7A. In this particular embodiment, the spring-loadedtabs 54 will lock into place on thehelical coil 42. This particular embodiment may help to ease the insertion of thetabs 54 into thehelical coil 42 and also may enhance the holding power of this connection. Another alternative design is shown in FIG. 7C in which the spring-loadedtabs 54 are again disposed to extend proximally from thesecond sleeve 34. Both of the embodiments shown in FIGS. 7B and 7C have spring-loaded tabs facing proximally which will tend to wedge tighter once thefilter assembly 22 comes in contact with thehelical coil 42. Additionally, these particular embodiments may help to hold thefilter assembly 22 tighter onto the guide wire via thehelical coil 42 in the event that thefilter assembly 22 is ever caught in the patient's anatomy and the guide wire is pulled proximally. - In FIGS. 8 and 9, the
embolic filtering device 20 is shown within an artery 80 or other body vessel of the patient. This portion of the artery 80 has an area oftreatment 82 in which, for example,atherosclerotic plaque 84 has built up against the inside wall 86 of the artery 80. In operation, the physician would first insert theguide wire 40 into the vasculature of the patient, positioning thedistal section 64 of the guide wire across the area oftreatment 82 with the distal end andhelical coil 42 located downstream from the area of treatment. Next, thedelivery sheath 44 delivers thefilter assembly 22 separately along theguide wire 40 in order to maintain theexpandable filter assembly 22 in its collapsed position. The physician manipulates thesheath 44 and/or theguide wire 40 to join theconnector 36, in this embodiment theconnection coil 50, to thehelical coil 42. Once thefilter assembly 22 is joined to thehelical coil 42, theexpandable filter assembly 22 is expanded by the physician by simply retracting thedelivery sheath 44 proximally to expose the expandable filter assembly. Once the restraining sheath is retracted, the self-expandingcage 24 immediately begins to expand within the body vessel, causing thefilter element 26 to expand as well. By attaching thefilter assembly 22 to the guide wire after the guide wire has been delivered to the area oftreatment 82, the physician is able to deliver the guide wire with “front-line” capabilities and is still able to obtain embolic protection as a separate attachment. - Referring now to FIG. 9, the
embolic filtering device 20 is shown in its expanded position within the patient's artery 80. Any embolic debris 90 created during an interventional procedure will be released into the bloodstream and will enter thefilter assembly 22 located downstream from the area oftreatment 82. Once the procedure is completed and the embolic debris 90 is collected in thefilter element 26, thefilter assembly 22 can be collapsed by arecovery sheath 44 which slides over the filter assembly, allowing theembolic filter device 20 to be removed from the patient's vasculature. - When the
filtering assembly 22 is collapsed by the recovery sheath, there is a possibility that the proximal end of the filter assembly may move somewhat distally as the end of the recovery sheath contacts the assembly. This may occur, for example, in the embodiment shown in FIG. 1, since the proximal end of the filter assembly is not physically attached to the guide wire, but rather is slidably disposed on the guide wire. This may not occur if the expandable basket has sufficient axial stiffness. However, when a filter assembly such as the one in FIG. 1 is utilized, a recovery sheath having a large inner diameter may be used to capture a greater portion of the proximal end of the filter assembly. As a result, the recovery sheath may help to prevent the proximal end from moving distally as the sheath slides over the filter assembly. Another way to prevent the end from moving is to utilize a tubular member or shaft, such as is shown in the embodiments of FIGS. 2 and 3. Thetubular shaft 52 provides axial rigidity which prevents the proximal end of the filter assembly from being pushed distally as a recovery sheath extends over the filter assembly. Again, the distal connection of thetubular shaft 52 and basket should be a sliding fit in order to allow the basket to open and close. Thetubular shaft 52 used in accordance with the embodiments of FIGS. 2 and 3 is just one example of adding stiffness in a longitudinal direction to enhance the ability of the filter assembly to be collapsed by the recovery sheath. - Referring now to FIGS.10-12, another embodiment of the
embolic filtering device 20 is shown as it is rotatably mounted onto the specially adaptedguide wire 92. In this particular embodiment, theguide wire 92 has acomposite tip coil 94 including arotating coil section 96 which is rotatably mounted to the core of theguide wire 92. This rotating coil section is disposed between aproximal coil section 98 and adistal coil section 100 which are both fixed to the core of the guide wire. Theproximal coil section 98 and thedistal coil section 100 act as stop fittings to maintain therotating coil segment 96 longitudinally fixed there between, yet allows the rotating coil segment to rotate relative to the guide wire. Theproximal coil section 98 anddistal coil section 100, along with therotating coil section 96, cooperatively form a composite tip coil which can be bent to a J-shaped configuration, or other configuration, as is well-known in the art, to aid in the steering of the guide wire through the patient's anatomy. - The
guide wire connector 36 is adapted to engage and attach to therotating coil section 96 which forms thecomposite tip coil 94. Theguide wire connector 36 which can be used in accordance with this embodiment can be either the connection coil described above or the spring-loaded tabs described in conjunction with the embodiment of FIG. 3. - As can be better seen in FIG. 12, the rotating
coil section 96 is disposed between theproximal coil section 98 and thedistal coil section 100. It should be appreciated that the outer diameter of theproximal coil section 98 may be somewhat smaller than the outer diameter of therotating coil section 96 to allow the distal end of the filter assembly to extend thereover when the connection to the rotating coil section is being performed. When the spring-loaded tabs are utilized, the gaps between the coils of therotating coil section 96 may be increased to provide gaps which help the tabs to latch onto the coils of the rotating coil section. - As can be seen in FIG. 11, the
filter assembly 22 may include anobturator 102 made from a soft material such as PEBAX 40D which provides an atraumatic tip to the filter assembly as it is being advanced over the guide wire within the patient's vasculature. The soft-tippedobturator 102 helps to prevent the distal end of the filter from scraping the walls of the body vessel as it is being advanced therethrough. This same type of obturator can be used to in accordance with any of the other embodiments of the filter assembly used in accordance with the present invention. - Alternatively, as in shown in FIG. 10B, the distal end of the
filter assembly 22 can be soldered directly to therotating coil section 96 to create a one-piece embolic filtering device which can also be used during the performance of interventional procedures for capturing any embolic debris which may be created. If the distal end of the filter assembly is permanently attached to therotating coil section 96, then the filtering assembly would not be able to be delivered separately once the guide wire has been steered into the target area in the patient's vasculature, but rather, would move with the distal end of guide wire along with the delivery sheath which maintains it in its collapsed position. Such a composite filter/guide wire could be delivered into a patient's vasculature for particulate filtration. - The
guide wire connector 36 made in accordance with the present invention has been shown as it is connected to the distal sleeve which forms part of the expandable basket of the filter assembly. However, the guide wire connector also could be formed on thetubular shaft 52 used in accordance with the embodiments of the filter assemblies of FIGS. 2 and 3. It also can be a separate piece which is bonded or otherwise attached to the distal end of any conventional filtering assembly. Accordingly, theguide wire connector 36 can take on many different shapes and forms other than those shown in the particular figures disclosed herein to perform the same function as that disclosed herein. It should be appreciated that modifications can be made to the guide wire, filter assembly and guide wire connector without departing from the spirit and scope of the present invention. - It should be appreciated that the guide wire connectors could be placed on the proximal end of the filter assembly, rather than the distal end. The guide wire connectors are shown attached to the distal most end of the filter assemblies in the particular embodiments described herein. However, similar type connectors could be placed on the proximal end of the filter assembly without departing from the spirit and scope of the present invention.
- The expandable basket of the present invention can be made in many ways. One particular method of making the basket is to cut a thin-walled tubular member, such as nickel-titanium hypotube, to remove portions of the tubing in the desired pattern for each strut, leaving relatively untouched the portions of the tubing which form the structure. The tubing may be cut into the desired pattern by means of a machine-controlled laser. The tubing used to make the basket could possibly be made of suitable biocompatible material, such as spring steel. Elgiloy is another material which could possibly be used to manufacture the basket. Also, very elastic polymers possibly could be used to manufacture the basket.
- The strut size is often very small, so the tubing from which the basket is made may have a small diameter. Typically, the tubing has an outer diameter on the order of about 0.020-0.040 inches in the unexpanded condition. Also, the basket can be cut from large diameter tubing. Fittings are attached to both ends of the lased tube to form the final basket geometry. The wall thickness of the tubing is usually about 0.076 mm (0.001-0.010 inches). As can be appreciated, the strut width and/or depth at the bending points will be less. For baskets deployed in body lumens, such as PTA applications, the dimensions of the tubing may be correspondingly larger. While it is preferred that the basket be made from laser cut tubing, those skilled in the art will realize that the basket can be laser cut from a flat sheet and then rolled up in a cylindrical configuration with the longitudinal edges welded to form a cylindrical member.
- Generally, the tubing is put in a rotatable collet fixture of a machine-controlled apparatus for positioning the tubing relative to a laser. According to machine-encoded instructions, the tubing is then rotated and moved longitudinally relative to the laser which is also machine-controlled. The laser selectively removes the material from the tubing by ablation and a pattern is cut into the tube. The tube is therefore cut into the discrete pattern of the finished struts. The basket can be laser cut much like a stent is laser cut. Details on how the tubing can be cut by a laser are found in U.S. Pat. No. 5,759,192 (Saunders), U.S. Pat. No. 5,780,807 (Saunders) and U.S. Pat. No. 6,131,266 (Saunders) which have been assigned to Advanced Cardiovascular Systems, Inc.
- The process of cutting a pattern for the strut assembly into the tubing generally is automated except for loading and unloading the length of tubing. For example, a pattern can be cut in tubing using a CNC-opposing collet fixture for axial rotation of the length of tubing, in conjunction with CNC X/Y table to move the length of tubing axially relative to a machine-controlled laser as described. The entire space between collets can be patterned using the CO2 or Nd:YAG laser set-up. The program for control of the apparatus is dependent on the particular configuration used and the pattern to be ablated in the coding.
- A suitable composition of nickel-titanium which can be used to manufacture the strut assembly of the present invention is approximately 55% nickel and 45% titanium (by weight) with trace amounts of other elements making up about 0.5% of the composition. The austenite transformation temperature is between about 0° C. and 20° C. in order to achieve superelasticity at human body temperature. The austenite temperature is measured by the bend and free recovery tangent method. The upper plateau strength is about a minimum of 60,000 psi with an ultimate tensile strength of a minimum of about 155,000 psi. The permanent set (after applying 8% strain and unloading), is less than approximately 0.5%. The breaking elongation is a minimum of 10%. It should be appreciated that other compositions of nickel-titanium can be utilized, as can other self-expanding alloys, to obtain the same features of a self-expanding basket made in accordance with the present invention.
- In one example, the basket of the present invention can be laser cut from a tube of nickel-titanium (Nitinol) whose transformation temperature is below body temperature. After the strut pattern is cut into the hypotube, the tubing is expanded and heat treated to be stable at the desired final diameter. The heat treatment also controls the transformation temperature of the basket such that it is super elastic at body temperature. The transformation temperature is at or below body temperature so that the basket is superelastic at body temperature. The basket is usually implanted into the target vessel which is smaller than the diameter of the basket in the expanded position so that the struts of the basket apply a force to the vessel wall to maintain the basket in its expanded position. It should be appreciated that the basket can be made from either superelastic, stress-induced martensite NiTi or shape-memory NiTi.
- The basket could also be manufactured by laser cutting a large diameter tubing of nickel-titanium which would create the basket in its expanded position. Thereafter, the formed basket could be placed in its unexpanded position by backloading the basket into a restraining sheath which will keep the device in the unexpanded position until it is ready for use. If the basket is formed in this manner, there would be no need to heat treat the tubing to achieve the final desired diameter. This process of forming the basket could be implemented when using superelastic or linear-elastic nickel-titanium.
- The struts forming the proximal struts can be made from the same or a different material than the distal struts. In this manner, more or less flexibility for the proximal struts can be obtained. When a different material is utilized for the struts of the proximal struts, the distal struts can be manufactured through the lazing process described above with the proximal struts being formed separately and attached. Suitable fastening means such as adhesive bonding, brazing, soldering, welding and the like can be utilized in order to connect the struts to the distal assembly. Suitable materials for the struts include superelastic materials, such as nickel-titanium, spring steel, Elgiloy, along with polymeric materials which are sufficiently flexible and bendable.
- The polymeric material which can be utilized to create the filtering element include, but is not limited to, polyurethane and Gortex, a commercially available material. Other possible suitable materials include ePTFE. The material can be elastic or non-elastic. The wall thickness of the filtering element can be about 0.00050-0.0050 inches. The wall thickness may vary depending on the particular material selected. The material can be made into a cone or similarly sized shape utilizing blow-mold technology or dip molding technology. The openings can be any different shape or size. A laser, a heated rod or other process can be utilized to create to perfusion openings in the filter material. The holes, would of course be properly sized to catch the particular size of embolic debris of interest. Holes can be lazed in a spinal pattern with some similar pattern which will aid in the re-wrapping of the media during closure of the device. Additionally, the filter material can have a “set” put in it much like the “set” used in dilatation balloons to make the filter element re-wrap more easily when placed in the collapsed position.
- The materials which can be utilized for the restraining sheath can be made from polymeric material such as cross-linked HDPE. This sheath can alternatively be made from a material such as polyolifin which has sufficient strength to hold the compressed strut assembly and has relatively low frictional characteristics to minimize any friction between the filter assembly and the sheath. Friction can be further reduced by applying a coat of silicone lubricant, such as Microglide®, to the inside surface of the restraining sheath before the sheath is placed over the filter assembly. Silicone also can be placed on the filter material as well.
- Further modifications and improvements may additionally be made to the device and method disclosed herein without departing from the scope of the present invention. Accordingly, it is not intended that the invention be limited, except as by the appended claims.
Claims (42)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US10/260,718 US7331973B2 (en) | 2002-09-30 | 2002-09-30 | Guide wire with embolic filtering attachment |
AU2003282879A AU2003282879A1 (en) | 2002-09-30 | 2003-09-29 | Guide wire with embolic filtering attachment |
PCT/US2003/030546 WO2004030575A1 (en) | 2002-09-30 | 2003-09-29 | Guide wire with embolic filtering attachment |
US12/025,404 US7815660B2 (en) | 2002-09-30 | 2008-02-04 | Guide wire with embolic filtering attachment |
US12/904,001 US8029530B2 (en) | 2002-09-30 | 2010-10-13 | Guide wire with embolic filtering attachment |
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US10/260,718 US7331973B2 (en) | 2002-09-30 | 2002-09-30 | Guide wire with embolic filtering attachment |
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US12/904,001 Expired - Fee Related US8029530B2 (en) | 2002-09-30 | 2010-10-13 | Guide wire with embolic filtering attachment |
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US12/904,001 Expired - Fee Related US8029530B2 (en) | 2002-09-30 | 2010-10-13 | Guide wire with embolic filtering attachment |
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Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030120303A1 (en) * | 2001-12-21 | 2003-06-26 | Boyle William J. | Flexible and conformable embolic filtering devices |
US20050075663A1 (en) * | 2001-11-27 | 2005-04-07 | Boyle William J. | Offset proximal cage for embolic filtering devices |
US20060195138A1 (en) * | 2002-05-06 | 2006-08-31 | Scimed Life Systems, Inc. | Perfusion guidewire in combination with a distal filter |
US20060271149A1 (en) * | 2005-05-25 | 2006-11-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US20060271153A1 (en) * | 2005-05-25 | 2006-11-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US20070185525A1 (en) * | 2006-02-07 | 2007-08-09 | White Bradley R | Floating on the wire filter wire |
US20070219577A1 (en) * | 2006-03-20 | 2007-09-20 | Boston Scientific Scimed, Inc. | Sprayed in delivery sheath tubes |
US20070250035A1 (en) * | 2006-04-19 | 2007-10-25 | El-Nounou Fozan O | Devices and methods for intravascular drug delivery |
EP2103263A1 (en) * | 2008-03-21 | 2009-09-23 | Nipro Corporation | Shaft for operating a blood thrombus capturing member, and blood thrombus capturing catheter |
US20090318947A1 (en) * | 2005-05-25 | 2009-12-24 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US7662166B2 (en) | 2000-12-19 | 2010-02-16 | Advanced Cardiocascular Systems, Inc. | Sheathless embolic protection system |
US7678129B1 (en) | 2004-03-19 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US7678131B2 (en) | 2002-10-31 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Single-wire expandable cages for embolic filtering devices |
US7699865B2 (en) | 2003-09-12 | 2010-04-20 | Rubicon Medical, Inc. | Actuating constraining mechanism |
US7780694B2 (en) | 1999-12-23 | 2010-08-24 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US7815660B2 (en) | 2002-09-30 | 2010-10-19 | Advanced Cardivascular Systems, Inc. | Guide wire with embolic filtering attachment |
US20100268263A1 (en) * | 2009-04-21 | 2010-10-21 | Boston Scientific Scimed, Inc. | Embolic protection filters, filter membranes, and methods for making and using the same |
US7842064B2 (en) | 2001-08-31 | 2010-11-30 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
CN101926667A (en) * | 2005-05-25 | 2010-12-29 | 切斯纳特医药技术公司 | System and method for conveying and unfolding stopper in blood vessel |
US7867273B2 (en) | 2007-06-27 | 2011-01-11 | Abbott Laboratories | Endoprostheses for peripheral arteries and other body vessels |
US7892251B1 (en) | 2003-11-12 | 2011-02-22 | Advanced Cardiovascular Systems, Inc. | Component for delivering and locking a medical device to a guide wire |
US7918820B2 (en) | 1999-12-30 | 2011-04-05 | Advanced Cardiovascular Systems, Inc. | Device for, and method of, blocking emboli in vessels such as blood arteries |
US7959647B2 (en) | 2001-08-30 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Self furling umbrella frame for carotid filter |
US7959646B2 (en) | 2001-06-29 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Filter device for embolic protection systems |
US7976560B2 (en) | 2002-09-30 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US8016854B2 (en) | 2001-06-29 | 2011-09-13 | Abbott Cardiovascular Systems Inc. | Variable thickness embolic filtering devices and methods of manufacturing the same |
US8052712B2 (en) | 2001-07-02 | 2011-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
US8137377B2 (en) | 1999-12-23 | 2012-03-20 | Abbott Laboratories | Embolic basket |
US8142442B2 (en) | 1999-12-23 | 2012-03-27 | Abbott Laboratories | Snare |
US8177791B2 (en) | 2000-07-13 | 2012-05-15 | Abbott Cardiovascular Systems Inc. | Embolic protection guide wire |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US8382825B2 (en) | 2004-05-25 | 2013-02-26 | Covidien Lp | Flexible vascular occluding device |
US20130060276A1 (en) * | 2010-05-25 | 2013-03-07 | Gordon Donald Hocking | Catheter apparatus |
US8394119B2 (en) | 2006-02-22 | 2013-03-12 | Covidien Lp | Stents having radiopaque mesh |
US8398701B2 (en) | 2004-05-25 | 2013-03-19 | Covidien Lp | Flexible vascular occluding device |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US8617234B2 (en) | 2004-05-25 | 2013-12-31 | Covidien Lp | Flexible vascular occluding device |
US8623067B2 (en) | 2004-05-25 | 2014-01-07 | Covidien Lp | Methods and apparatus for luminal stenting |
US8845583B2 (en) | 1999-12-30 | 2014-09-30 | Abbott Cardiovascular Systems Inc. | Embolic protection devices |
US20150157443A1 (en) * | 2004-03-25 | 2015-06-11 | David L. Hauser | Method of Treating Occlusion in a Blood Vessel |
US20150230907A1 (en) * | 2014-02-18 | 2015-08-20 | Cook Medical Technologies Llc | Flexible embolic double filter |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
US9144509B2 (en) | 2007-05-31 | 2015-09-29 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US9149610B2 (en) | 2007-05-31 | 2015-10-06 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US9157174B2 (en) | 2013-02-05 | 2015-10-13 | Covidien Lp | Vascular device for aneurysm treatment and providing blood flow into a perforator vessel |
US9155647B2 (en) | 2012-07-18 | 2015-10-13 | Covidien Lp | Methods and apparatus for luminal stenting |
US9259305B2 (en) | 2005-03-31 | 2016-02-16 | Abbott Cardiovascular Systems Inc. | Guide wire locking mechanism for rapid exchange and other catheter systems |
US9364586B2 (en) | 2007-05-31 | 2016-06-14 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
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US9943427B2 (en) | 2012-11-06 | 2018-04-17 | Covidien Lp | Shaped occluding devices and methods of using the same |
US10004618B2 (en) | 2004-05-25 | 2018-06-26 | Covidien Lp | Methods and apparatus for luminal stenting |
USD868253S1 (en) | 2014-10-13 | 2019-11-26 | Boston Scientific Scimed, Inc. | Macerator wire |
US20200038031A1 (en) * | 2018-08-03 | 2020-02-06 | DePuy Synthes Products, Inc. | Spiral delivery system for embolic braid |
US11090465B2 (en) * | 2014-08-21 | 2021-08-17 | Boston Scientific Scimed, Inc. | Medical device with support member |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE448737T1 (en) | 2004-09-22 | 2009-12-15 | Dendron Gmbh | DEVICE FOR IMPLANTING MICROWL COILS |
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US8777979B2 (en) | 2006-04-17 | 2014-07-15 | Covidien Lp | System and method for mechanically positioning intravascular implants |
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US9220522B2 (en) | 2007-10-17 | 2015-12-29 | Covidien Lp | Embolus removal systems with baskets |
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US9814562B2 (en) | 2009-11-09 | 2017-11-14 | Covidien Lp | Interference-relief type delivery detachment systems |
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US9089341B2 (en) | 2012-02-28 | 2015-07-28 | Surefire Medical, Inc. | Renal nerve neuromodulation device |
US9687245B2 (en) | 2012-03-23 | 2017-06-27 | Covidien Lp | Occlusive devices and methods of use |
US9456834B2 (en) | 2012-10-31 | 2016-10-04 | Covidien Lp | Thrombectomy device with distal protection |
EP2964200B1 (en) | 2013-03-06 | 2017-04-19 | Novartis AG | Formulations of organic compounds |
WO2014164535A1 (en) * | 2013-03-11 | 2014-10-09 | Ferry Steven J | A guidewire/ partial occluder for intraluminal travel |
US10076336B2 (en) | 2013-03-15 | 2018-09-18 | Covidien Lp | Delivery and detachment mechanisms for vascular implants |
US9402708B2 (en) | 2013-07-25 | 2016-08-02 | Covidien Lp | Vascular devices and methods with distal protection |
US9078658B2 (en) | 2013-08-16 | 2015-07-14 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US9955976B2 (en) | 2013-08-16 | 2018-05-01 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
US9968740B2 (en) | 2014-03-25 | 2018-05-15 | Surefire Medical, Inc. | Closed tip dynamic microvalve protection device |
US9889031B1 (en) | 2014-03-25 | 2018-02-13 | Surefire Medical, Inc. | Method of gastric artery embolization |
US9629635B2 (en) | 2014-04-14 | 2017-04-25 | Sequent Medical, Inc. | Devices for therapeutic vascular procedures |
WO2015160721A1 (en) * | 2014-04-14 | 2015-10-22 | Sequent Medical Inc. | Devices for therapeutic vascular procedures |
US9713475B2 (en) | 2014-04-18 | 2017-07-25 | Covidien Lp | Embolic medical devices |
US9782178B2 (en) | 2014-09-19 | 2017-10-10 | DePuy Synthes Products, Inc. | Vasculature occlusion device detachment system with tapered corewire and heater activated fiber detachment |
US9855050B2 (en) | 2014-09-19 | 2018-01-02 | DePuy Synthes Products, Inc. | Vasculature occlusion device detachment system with tapered corewire and single loop fuse detachment |
US20160287839A1 (en) | 2015-03-31 | 2016-10-06 | Surefire Medical, Inc. | Apparatus and Method for Infusing an Immunotherapy Agent to a Solid Tumor for Treatment |
JP2018126173A (en) * | 2015-06-16 | 2018-08-16 | テルモ株式会社 | Medical device and treatment method |
US10780250B1 (en) | 2016-09-19 | 2020-09-22 | Surefire Medical, Inc. | System and method for selective pressure-controlled therapeutic delivery |
US11400263B1 (en) | 2016-09-19 | 2022-08-02 | Trisalus Life Sciences, Inc. | System and method for selective pressure-controlled therapeutic delivery |
US10588636B2 (en) | 2017-03-20 | 2020-03-17 | Surefire Medical, Inc. | Dynamic reconfigurable microvalve protection device |
US11850398B2 (en) | 2018-08-01 | 2023-12-26 | Trisalus Life Sciences, Inc. | Systems and methods for pressure-facilitated therapeutic agent delivery |
US11338117B2 (en) | 2018-10-08 | 2022-05-24 | Trisalus Life Sciences, Inc. | Implantable dual pathway therapeutic agent delivery port |
US11383066B2 (en) * | 2019-02-05 | 2022-07-12 | Virginia Commonwealth University | Guidewire systems and methods for preventing wire advancement into the body during catheterization |
CN113573650B (en) | 2019-03-15 | 2024-05-28 | 后续医疗股份有限公司 | Wire device with flexible connection for treating vascular defects |
JP7483744B2 (en) | 2019-03-15 | 2024-05-15 | マイクロベンション インコーポレイテッド | Filamentous Devices for the Treatment of Vascular Disorders - Patent application |
EP3908209A4 (en) | 2019-03-15 | 2022-10-19 | Sequent Medical, Inc. | Filamentary devices for treatment of vascular defects |
Citations (91)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4494531A (en) * | 1982-12-06 | 1985-01-22 | Cook, Incorporated | Expandable blood clot filter |
US4643184A (en) * | 1982-09-29 | 1987-02-17 | Mobin Uddin Kazi | Embolus trap |
US4723549A (en) * | 1986-09-18 | 1988-02-09 | Wholey Mark H | Method and apparatus for dilating blood vessels |
US4794928A (en) * | 1987-06-10 | 1989-01-03 | Kletschka Harold D | Angioplasty device and method of using the same |
US4990156A (en) * | 1988-06-21 | 1991-02-05 | Lefebvre Jean Marie | Filter for medical use |
US5383887A (en) * | 1992-12-28 | 1995-01-24 | Celsa Lg | Device for selectively forming a temporary blood filter |
US5490859A (en) * | 1992-11-13 | 1996-02-13 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5595813A (en) * | 1992-09-22 | 1997-01-21 | Takenaka Corporation | Architectural material using metal oxide exhibiting photocatalytic activity |
US5599492A (en) * | 1990-03-19 | 1997-02-04 | Target Therapeutics, Inc. | Method for making a guidewire with a flexible distal tip |
US5601595A (en) * | 1994-10-25 | 1997-02-11 | Scimed Life Systems, Inc. | Remobable thrombus filter |
US5720764A (en) * | 1994-06-11 | 1998-02-24 | Naderlinger; Eduard | Vena cava thrombus filter |
US5868708A (en) * | 1997-05-07 | 1999-02-09 | Applied Medical Resources Corporation | Balloon catheter apparatus and method |
US6013093A (en) * | 1995-11-28 | 2000-01-11 | Boston Scientific Corporation | Blood clot filtering |
US6022336A (en) * | 1996-05-20 | 2000-02-08 | Percusurge, Inc. | Catheter system for emboli containment |
US6027520A (en) * | 1997-05-08 | 2000-02-22 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US6168579B1 (en) * | 1999-08-04 | 2001-01-02 | Scimed Life Systems, Inc. | Filter flush system and methods of use |
US6168604B1 (en) * | 1995-10-06 | 2001-01-02 | Metamorphic Surgical Devices, Llc | Guide wire device for removing solid objects from body canals |
US6171327B1 (en) * | 1999-02-24 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular filter and method |
US6171328B1 (en) * | 1999-11-09 | 2001-01-09 | Embol-X, Inc. | Intravascular catheter filter with interlocking petal design and methods of use |
US6174318B1 (en) * | 1998-04-23 | 2001-01-16 | Scimed Life Systems, Inc. | Basket with one or more moveable legs |
US6176849B1 (en) * | 1999-05-21 | 2001-01-23 | Scimed Life Systems, Inc. | Hydrophilic lubricity coating for medical devices comprising a hydrophobic top coat |
US6179861B1 (en) * | 1999-07-30 | 2001-01-30 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US6179859B1 (en) * | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
US6179860B1 (en) * | 1998-08-19 | 2001-01-30 | Artemis Medical, Inc. | Target tissue localization device and method |
US6187025B1 (en) * | 1999-09-09 | 2001-02-13 | Noble-Met, Ltd. | Vascular filter |
US6336934B1 (en) * | 1997-11-07 | 2002-01-08 | Salviac Limited | Embolic protection device |
US6340465B1 (en) * | 1999-04-12 | 2002-01-22 | Edwards Lifesciences Corp. | Lubricious coatings for medical devices |
US6340364B2 (en) * | 1999-10-22 | 2002-01-22 | Nozomu Kanesaka | Vascular filtering device |
US6346116B1 (en) * | 1999-08-03 | 2002-02-12 | Medtronic Ave, Inc. | Distal protection device |
US6348056B1 (en) * | 1999-08-06 | 2002-02-19 | Scimed Life Systems, Inc. | Medical retrieval device with releasable retrieval basket |
US20020022858A1 (en) * | 1999-07-30 | 2002-02-21 | Demond Jackson F. | Vascular device for emboli removal having suspension strut and methods of use |
US20030004537A1 (en) * | 2001-06-29 | 2003-01-02 | Boyle William J. | Delivery and recovery sheaths for medical devices |
US20030004540A1 (en) * | 2001-07-02 | 2003-01-02 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying an embolic protection filter |
US20030004539A1 (en) * | 2001-07-02 | 2003-01-02 | Linder Richard J. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US20030004541A1 (en) * | 2001-07-02 | 2003-01-02 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
US20030004536A1 (en) * | 2001-06-29 | 2003-01-02 | Boylan John F. | Variable thickness embolic filtering devices and method of manufacturing the same |
US20030009188A1 (en) * | 2001-07-02 | 2003-01-09 | Linder Richard J. | Methods, systems, and devices for deploying a filter from a filter device |
US6506203B1 (en) * | 2000-12-19 | 2003-01-14 | Advanced Cardiovascular Systems, Inc. | Low profile sheathless embolic protection system |
US6506205B2 (en) * | 2001-02-20 | 2003-01-14 | Mark Goldberg | Blood clot filtering system |
US20030010686A1 (en) * | 2000-02-18 | 2003-01-16 | Yoshiyuki Sawada | Apparatus for producing coagulant and water clarification apparatus using the same |
US20030015206A1 (en) * | 2001-07-18 | 2003-01-23 | Roth Noah M. | Integral vascular filter system |
US6511492B1 (en) * | 1998-05-01 | 2003-01-28 | Microvention, Inc. | Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders |
US6511496B1 (en) * | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
US6511503B1 (en) * | 1999-12-30 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
US6511497B1 (en) * | 1999-09-14 | 2003-01-28 | Cormedics Gmbh | Vascular filter system |
US20030023265A1 (en) * | 2001-07-13 | 2003-01-30 | Forber Simon John | Vascular protection system |
US6514273B1 (en) * | 2000-03-22 | 2003-02-04 | Endovascular Technologies, Inc. | Device for removal of thrombus through physiological adhesion |
US6517550B1 (en) * | 2000-02-02 | 2003-02-11 | Board Of Regents, The University Of Texas System | Foreign body retrieval device |
US6517559B1 (en) * | 1999-05-03 | 2003-02-11 | O'connell Paul T. | Blood filter and method for treating vascular disease |
US20030032977A1 (en) * | 1997-11-07 | 2003-02-13 | Salviac Limited | Filter element with retractable guidewire tip |
US20030032941A1 (en) * | 2001-08-13 | 2003-02-13 | Boyle William J. | Convertible delivery systems for medical devices |
US6520978B1 (en) * | 2000-05-15 | 2003-02-18 | Intratherapeutics, Inc. | Emboli filter |
US20030040772A1 (en) * | 1999-02-01 | 2003-02-27 | Hideki Hyodoh | Delivery devices |
US20040002730A1 (en) * | 2002-06-26 | 2004-01-01 | Denison Andy E. | Embolic filtering devices for bifurcated vessels |
US6673090B2 (en) * | 1999-08-04 | 2004-01-06 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue |
US20040006367A1 (en) * | 2001-06-12 | 2004-01-08 | Krik Johnson | Emboli extraction catheter and vascular filter system |
US20040006366A1 (en) * | 2001-08-31 | 2004-01-08 | Huter Benjamin C. | Hinged short cage for an embolic protection device |
US20040006364A1 (en) * | 1997-06-02 | 2004-01-08 | Ladd William Gregory | Apparatus for trapping emboli |
US20040006365A1 (en) * | 2002-05-13 | 2004-01-08 | Salviac Limited | Embolic protection system |
US20040006361A1 (en) * | 2002-06-27 | 2004-01-08 | Boyle William J. | Support structures for embolic filtering devices |
US20040006368A1 (en) * | 1994-07-08 | 2004-01-08 | Ev3 Inc. | Method and device for filtering body fluid |
US6676666B2 (en) * | 1999-01-11 | 2004-01-13 | Scimed Life Systems, Inc | Medical device delivery system with two sheaths |
US6676682B1 (en) * | 1997-05-08 | 2004-01-13 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US6679903B2 (en) * | 1998-12-15 | 2004-01-20 | Micrus Corporation | Intravascular device push wire delivery system |
US6679902B1 (en) * | 2000-07-19 | 2004-01-20 | Advanced Cardiovascular Systems, Inc. | Reduced profile delivery sheath for use in interventional procedures |
US20040015184A1 (en) * | 2000-12-21 | 2004-01-22 | Boyle William J. | Vessel occlusion device for embolic protection system |
US6682546B2 (en) * | 1994-07-08 | 2004-01-27 | Aga Medical Corporation | Intravascular occlusion devices |
US20040019363A1 (en) * | 2000-10-05 | 2004-01-29 | Scimed Life Systems, Inc. | Filter delivery and retrieval device |
US6837898B2 (en) * | 2001-11-30 | 2005-01-04 | Advanced Cardiovascular Systems, Inc. | Intraluminal delivery system for an attachable treatment device |
US20050004594A1 (en) * | 2003-07-02 | 2005-01-06 | Jeffrey Nool | Devices and methods for aspirating from filters |
US20050004597A1 (en) * | 2003-04-29 | 2005-01-06 | Mcguckin James F. | Distal protection device |
US20050004595A1 (en) * | 2003-02-27 | 2005-01-06 | Boyle William J. | Embolic filtering devices |
US6840950B2 (en) * | 2001-02-20 | 2005-01-11 | Scimed Life Systems, Inc. | Low profile emboli capture device |
US20050010245A1 (en) * | 2003-07-10 | 2005-01-13 | Lawrence Wasicek | Embolic protection filtering device |
US20050010247A1 (en) * | 2002-03-08 | 2005-01-13 | Ev3 Inc. | Distal protection devices having controllable wire motion |
US20050010246A1 (en) * | 2000-06-30 | 2005-01-13 | Streeter Richard B. | Intravascular filter with debris entrapment mechanism |
US6843798B2 (en) * | 1999-08-27 | 2005-01-18 | Ev3 Inc. | Slideable vascular filter |
US6846317B1 (en) * | 1999-06-14 | 2005-01-25 | Aln | Kit for removing a blood vessel filter |
US6846316B2 (en) * | 1999-12-10 | 2005-01-25 | Scimed Life Systems, Inc. | Systems and methods for detaching a covering from an implantable medical device |
US20050021075A1 (en) * | 2002-12-30 | 2005-01-27 | Bonnette Michael J. | Guidewire having deployable sheathless protective filter |
US20060004405A1 (en) * | 2001-10-18 | 2006-01-05 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
US20060004403A1 (en) * | 1997-11-07 | 2006-01-05 | Salviac Limited | Embolic protection system |
US6986778B2 (en) * | 1996-05-20 | 2006-01-17 | Medtronic Vascular, Inc. | Exchange method for emboli containment |
US20060015138A1 (en) * | 2004-07-19 | 2006-01-19 | Michael Gertner | Emboli diverting devices created by microfabricated means |
US20060015139A1 (en) * | 1999-11-15 | 2006-01-19 | Ross Tsugita | Guidewire filter and methods of use |
US6989021B2 (en) * | 2002-10-31 | 2006-01-24 | Cordis Corporation | Retrievable medical filter |
US6989027B2 (en) * | 2003-04-30 | 2006-01-24 | Medtronic Vascular Inc. | Percutaneously delivered temporary valve assembly |
US20060020285A1 (en) * | 2004-07-22 | 2006-01-26 | Volker Niermann | Method for filtering blood in a vessel with helical elements |
US20060020286A1 (en) * | 2004-07-22 | 2006-01-26 | Volker Niermann | Device for filtering blood in a vessel with helical elements |
US6991642B2 (en) * | 2001-03-06 | 2006-01-31 | Scimed Life Systems, Inc. | Wire and lock mechanism |
US6991641B2 (en) * | 1999-02-12 | 2006-01-31 | Cordis Corporation | Low profile vascular filter system |
Family Cites Families (435)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952747A (en) | 1974-03-28 | 1976-04-27 | Kimmell Jr Garman O | Filter and filter insertion instrument |
DE2821048C2 (en) | 1978-05-13 | 1980-07-17 | Willy Ruesch Gmbh & Co Kg, 7053 Kernen | Medical instrument |
US4425908A (en) | 1981-10-22 | 1984-01-17 | Beth Israel Hospital | Blood clot filter |
US4727873A (en) | 1984-04-17 | 1988-03-01 | Mobin Uddin Kazi | Embolus trap |
DK151404C (en) | 1984-05-23 | 1988-07-18 | Cook Europ Aps William | FULLY FILTER FOR IMPLANTATION IN A PATIENT'S BLOOD |
IT1176442B (en) | 1984-07-20 | 1987-08-18 | Enrico Dormia | INSTRUMENT FOR THE EXTRACTION OF FOREIGN BODIES FROM THE BODY'S PHYSIOLOGICAL CHANNELS |
FR2573646B1 (en) | 1984-11-29 | 1988-11-25 | Celsa Composants Electr Sa | PERFECTED FILTER, PARTICULARLY FOR THE RETENTION OF BLOOD CLOTS |
US4790813A (en) | 1984-12-17 | 1988-12-13 | Intravascular Surgical Instruments, Inc. | Method and apparatus for surgically removing remote deposits |
FR2580504B1 (en) | 1985-04-22 | 1987-07-10 | Pieronne Alain | FILTER FOR THE PARTIAL AND AT LEAST PROVISIONAL INTERRUPTION OF A VEIN AND CATHETER CARRYING THE FILTER |
US4706671A (en) | 1985-05-02 | 1987-11-17 | Weinrib Harry P | Catheter with coiled tip |
US4662885A (en) | 1985-09-03 | 1987-05-05 | Becton, Dickinson And Company | Percutaneously deliverable intravascular filter prosthesis |
US4650466A (en) | 1985-11-01 | 1987-03-17 | Angiobrade Partners | Angioplasty device |
US4790812A (en) | 1985-11-15 | 1988-12-13 | Hawkins Jr Irvin F | Apparatus and method for removing a target object from a body passsageway |
FR2606641B1 (en) | 1986-11-17 | 1991-07-12 | Promed | FILTERING DEVICE FOR BLOOD CLOTS |
US5154705A (en) * | 1987-09-30 | 1992-10-13 | Lake Region Manufacturing Co., Inc. | Hollow lumen cable apparatus |
US4873978A (en) | 1987-12-04 | 1989-10-17 | Robert Ginsburg | Device and method for emboli retrieval |
FR2624747A1 (en) | 1987-12-18 | 1989-06-23 | Delsanti Gerard | REMOVABLE ENDO-ARTERIAL DEVICES FOR REPAIRING ARTERIAL WALL DECOLLEMENTS |
US4921478A (en) | 1988-02-23 | 1990-05-01 | C. R. Bard, Inc. | Cerebral balloon angioplasty system |
US4832055A (en) | 1988-07-08 | 1989-05-23 | Palestrant Aubrey M | Mechanically locking blood clot filter |
US4921484A (en) | 1988-07-25 | 1990-05-01 | Cordis Corporation | Mesh balloon catheter device |
US5152777A (en) | 1989-01-25 | 1992-10-06 | Uresil Corporation | Device and method for providing protection from emboli and preventing occulsion of blood vessels |
US4969891A (en) | 1989-03-06 | 1990-11-13 | Gewertz Bruce L | Removable vascular filter |
DE8910603U1 (en) | 1989-09-06 | 1989-12-07 | Günther, Rolf W., Prof. Dr. | Device for removing blood clots from arteries and veins |
US5100425A (en) | 1989-09-14 | 1992-03-31 | Medintec R&D Limited Partnership | Expandable transluminal atherectomy catheter system and method for the treatment of arterial stenoses |
US4997435A (en) | 1989-09-25 | 1991-03-05 | Methodist Hospital Of Indiana Inc. | Percutaneous catheter with encapsulating receptacle |
US5092839A (en) | 1989-09-29 | 1992-03-03 | Kipperman Robert M | Coronary thrombectomy |
AU6376190A (en) | 1989-10-25 | 1991-05-02 | C.R. Bard Inc. | Occluding catheter and methods for treating cerebral arteries |
US5421832A (en) | 1989-12-13 | 1995-06-06 | Lefebvre; Jean-Marie | Filter-catheter and method of manufacturing same |
US5071407A (en) | 1990-04-12 | 1991-12-10 | Schneider (U.S.A.) Inc. | Radially expandable fixation member |
US5221261A (en) | 1990-04-12 | 1993-06-22 | Schneider (Usa) Inc. | Radially expandable fixation member |
US5158548A (en) | 1990-04-25 | 1992-10-27 | Advanced Cardiovascular Systems, Inc. | Method and system for stent delivery |
CA2048307C (en) | 1990-08-14 | 1998-08-18 | Rolf Gunther | Method and apparatus for filtering blood in a blood vessel of a patient |
US5108419A (en) | 1990-08-16 | 1992-04-28 | Evi Corporation | Endovascular filter and method for use thereof |
US5160342A (en) | 1990-08-16 | 1992-11-03 | Evi Corp. | Endovascular filter and method for use thereof |
US5100423A (en) | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
US5064428A (en) | 1990-09-18 | 1991-11-12 | Cook Incorporated | Medical retrieval basket |
US5053008A (en) | 1990-11-21 | 1991-10-01 | Sandeep Bajaj | Intracardiac catheter |
US5695518A (en) | 1990-12-28 | 1997-12-09 | Laerum; Frode | Filtering device for preventing embolism and/or distension of blood vessel walls |
US5984877A (en) * | 1991-02-05 | 1999-11-16 | Fleischhacker, Jr.; Joseph F. | Guide wire marker technique and coil spring marker technique |
US5350398A (en) | 1991-05-13 | 1994-09-27 | Dusan Pavcnik | Self-expanding filter for percutaneous insertion |
EP0590050B1 (en) | 1991-06-17 | 1999-03-03 | Wilson-Cook Medical Inc. | Endoscopic extraction device having composite wire construction |
DE9109006U1 (en) | 1991-07-22 | 1991-10-10 | Schmitz-Rode, Thomas, Dipl.-Ing. Dr.med., 5100 Aachen | Atherectomy angioplasty catheter |
US5192286A (en) | 1991-07-26 | 1993-03-09 | Regents Of The University Of California | Method and device for retrieving materials from body lumens |
US5626605A (en) | 1991-12-30 | 1997-05-06 | Scimed Life Systems, Inc. | Thrombosis filter |
FR2689388B1 (en) | 1992-04-07 | 1999-07-16 | Celsa Lg | PERFECTIONALLY RESORBABLE BLOOD FILTER. |
US5324304A (en) | 1992-06-18 | 1994-06-28 | William Cook Europe A/S | Introduction catheter set for a collapsible self-expandable implant |
US5527338A (en) | 1992-09-02 | 1996-06-18 | Board Of Regents, The University Of Texas System | Intravascular device |
FR2696092B1 (en) | 1992-09-28 | 1994-12-30 | Lefebvre Jean Marie | Kit for medical use composed of a filter and its device for placement in the vessel. |
US5792157A (en) | 1992-11-13 | 1998-08-11 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5501694A (en) | 1992-11-13 | 1996-03-26 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5836868A (en) | 1992-11-13 | 1998-11-17 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
DE69433774T2 (en) | 1993-02-19 | 2005-04-14 | Boston Scientific Corp., Natick | SURGICAL EXTRACTOR |
US5897567A (en) | 1993-04-29 | 1999-04-27 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5606979A (en) * | 1993-05-28 | 1997-03-04 | The Microspring Company Inc. | Guide wire |
US5634942A (en) | 1994-04-21 | 1997-06-03 | B. Braun Celsa | Assembly comprising a blood filter for temporary or definitive use and a device for implanting it |
US5658296A (en) | 1994-11-21 | 1997-08-19 | Boston Scientific Corporation | Method for making surgical retrieval baskets |
CA2301351C (en) | 1994-11-28 | 2002-01-22 | Advanced Cardiovascular Systems, Inc. | Method and apparatus for direct laser cutting of metal stents |
US5690671A (en) | 1994-12-13 | 1997-11-25 | Micro Interventional Systems, Inc. | Embolic elements and methods and apparatus for their delivery |
US5549626A (en) | 1994-12-23 | 1996-08-27 | New York Society For The Ruptured And Crippled Maintaining The Hospital For Special Surgery | Vena caval filter |
US5795322A (en) | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
ATE232067T1 (en) | 1995-04-14 | 2003-02-15 | Boston Scient Ltd | STENT DELIVERY DEVICE WITH ROLLING MEMBRANE |
ES2206549T3 (en) | 1995-04-14 | 2004-05-16 | B. Braun Medical Sas | INSTRUMENTAL MEDICAL DEVICE SUCH AS SANGUINEO FILTER. |
US5613981A (en) | 1995-04-21 | 1997-03-25 | Medtronic, Inc. | Bidirectional dual sinusoidal helix stent |
US5681347A (en) | 1995-05-23 | 1997-10-28 | Boston Scientific Corporation | Vena cava filter delivery system |
US5833650A (en) | 1995-06-05 | 1998-11-10 | Percusurge, Inc. | Catheter apparatus and method for treating occluded vessels |
US20020193828A1 (en) | 2001-06-14 | 2002-12-19 | Cook Incorporated | Endovascular filter |
TW438587B (en) | 1995-06-20 | 2001-06-07 | Takeda Chemical Industries Ltd | A pharmaceutical composition for prophylaxis and treatment of diabetes |
FR2735967B1 (en) | 1995-06-27 | 1998-03-06 | Perouse Implant Lab | VASCULAR SURGERY TOOL AND ITS USE |
FR2737654B1 (en) | 1995-08-10 | 1997-11-21 | Braun Celsa Sa | FILTRATION UNIT FOR THE RETENTION OF BLOOD CLOTS |
US5779716A (en) | 1995-10-06 | 1998-07-14 | Metamorphic Surgical Devices, Inc. | Device for removing solid objects from body canals, cavities and organs |
US6264663B1 (en) | 1995-10-06 | 2001-07-24 | Metamorphic Surgical Devices, Llc | Device for removing solid objects from body canals, cavities and organs including an invertable basket |
US5836892A (en) * | 1995-10-30 | 1998-11-17 | Cordis Corporation | Guidewire with radiopaque markers |
US5769816A (en) | 1995-11-07 | 1998-06-23 | Embol-X, Inc. | Cannula with associated filter |
US5989281A (en) | 1995-11-07 | 1999-11-23 | Embol-X, Inc. | Cannula with associated filter and methods of use during cardiac surgery |
US5695519A (en) | 1995-11-30 | 1997-12-09 | American Biomed, Inc. | Percutaneous filter for carotid angioplasty |
US6638293B1 (en) | 1996-02-02 | 2003-10-28 | Transvascular, Inc. | Methods and apparatus for blocking flow through blood vessels |
US5895398A (en) | 1996-02-02 | 1999-04-20 | The Regents Of The University Of California | Method of using a clot capture coil |
NL1002423C2 (en) | 1996-02-22 | 1997-08-25 | Cordis Europ | Temporary filter catheter. |
US5846251A (en) | 1996-07-22 | 1998-12-08 | Hart; Charles C. | Access device with expandable containment member |
US6096053A (en) | 1996-05-03 | 2000-08-01 | Scimed Life Systems, Inc. | Medical retrieval basket |
US6800080B1 (en) | 1996-05-03 | 2004-10-05 | Scimed Life Systems, Inc. | Medical retrieval device |
US5935139A (en) | 1996-05-03 | 1999-08-10 | Boston Scientific Corporation | System for immobilizing or manipulating an object in a tract |
CA2254831C (en) | 1996-05-14 | 2006-10-17 | Embol-X, Inc. | Aortic occluder with associated filter and methods of use during cardiac surgery |
US20050245894A1 (en) | 1996-05-20 | 2005-11-03 | Medtronic Vascular, Inc. | Methods and apparatuses for drug delivery to an intravascular occlusion |
WO1997044085A2 (en) | 1996-05-20 | 1997-11-27 | Percusurge, Inc. | Low profile catheter valve |
US6652480B1 (en) | 1997-03-06 | 2003-11-25 | Medtronic Ave., Inc. | Methods for reducing distal embolization |
US6270477B1 (en) | 1996-05-20 | 2001-08-07 | Percusurge, Inc. | Catheter for emboli containment |
NL1003497C2 (en) | 1996-07-03 | 1998-01-07 | Cordis Europ | Catheter with temporary vena-cava filter. |
US5662671A (en) | 1996-07-17 | 1997-09-02 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US5669933A (en) | 1996-07-17 | 1997-09-23 | Nitinol Medical Technologies, Inc. | Removable embolus blood clot filter |
US6066158A (en) | 1996-07-25 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot encasing and removal wire |
US6447530B1 (en) | 1996-11-27 | 2002-09-10 | Scimed Life Systems, Inc. | Atraumatic anchoring and disengagement mechanism for permanent implant device |
US5876367A (en) | 1996-12-05 | 1999-03-02 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries |
US5776162A (en) | 1997-01-03 | 1998-07-07 | Nitinol Medical Technologies, Inc. | Vessel implantable shape memory appliance with superelastic hinged joint |
FR2758078B1 (en) | 1997-01-03 | 1999-07-16 | Braun Celsa Sa | BLOOD FILTER WITH IMPROVED PERMEABILITY |
JP2000504263A (en) | 1997-02-03 | 2000-04-11 | アンジオガード インコーポレーテッド | Blood vessel filter |
US6391044B1 (en) | 1997-02-03 | 2002-05-21 | Angioguard, Inc. | Vascular filter system |
US6295989B1 (en) | 1997-02-06 | 2001-10-02 | Arteria Medical Science, Inc. | ICA angioplasty with cerebral protection |
US20020169458A1 (en) | 1997-02-06 | 2002-11-14 | Connors John J. | ICA angioplasty with cerebral protection |
US5882329A (en) | 1997-02-12 | 1999-03-16 | Prolifix Medical, Inc. | Apparatus and method for removing stenotic material from stents |
US6254633B1 (en) | 1997-02-12 | 2001-07-03 | Corvita Corporation | Delivery device for a medical device having a constricted region |
WO1998034673A1 (en) | 1997-02-12 | 1998-08-13 | Prolifix Medical, Inc. | Apparatus for removal of material from stents |
US5800457A (en) | 1997-03-05 | 1998-09-01 | Gelbfish; Gary A. | Intravascular filter and associated methodology |
US5827324A (en) | 1997-03-06 | 1998-10-27 | Scimed Life Systems, Inc. | Distal protection device |
US6152946A (en) | 1998-03-05 | 2000-11-28 | Scimed Life Systems, Inc. | Distal protection device and method |
US5814064A (en) | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
US6974469B2 (en) | 1997-03-06 | 2005-12-13 | Scimed Life Systems, Inc. | Distal protection device and method |
US7094249B1 (en) | 1997-03-06 | 2006-08-22 | Boston Scientific Scimed, Inc. | Distal protection device and method |
EP0934092A4 (en) | 1997-03-06 | 2008-03-26 | Boston Scient Scimed Inc | Distal protection device and method |
US5772674A (en) | 1997-03-31 | 1998-06-30 | Nakhjavan; Fred K. | Catheter for removal of clots in blood vessels |
US6316408B1 (en) | 1997-04-16 | 2001-11-13 | Amgen Inc. | Methods of use for osetoprotegerin binding protein receptors |
EP1011532B1 (en) | 1997-04-23 | 2014-05-07 | Ethicon Endo-Surgery, Inc. | Bifurcated stent and distal protection system |
US5846260A (en) | 1997-05-08 | 1998-12-08 | Embol-X, Inc. | Cannula with a modular filter for filtering embolic material |
US6258120B1 (en) | 1997-12-23 | 2001-07-10 | Embol-X, Inc. | Implantable cerebral protection device and methods of use |
US5954745A (en) | 1997-05-16 | 1999-09-21 | Gertler; Jonathan | Catheter-filter set having a compliant seal |
US6059814A (en) | 1997-06-02 | 2000-05-09 | Medtronic Ave., Inc. | Filter for filtering fluid in a bodily passageway |
US5800525A (en) | 1997-06-04 | 1998-09-01 | Vascular Science, Inc. | Blood filter |
US5848964A (en) | 1997-06-06 | 1998-12-15 | Samuels; Shaun Lawrence Wilkie | Temporary inflatable filter device and method of use |
US6245088B1 (en) | 1997-07-07 | 2001-06-12 | Samuel R. Lowery | Retrievable umbrella sieve and method of use |
US5941896A (en) | 1997-09-08 | 1999-08-24 | Montefiore Hospital And Medical Center | Filter and method for trapping emboli during endovascular procedures |
US6395014B1 (en) | 1997-09-26 | 2002-05-28 | John A. Macoviak | Cerebral embolic protection assembly and associated methods |
US6361545B1 (en) | 1997-09-26 | 2002-03-26 | Cardeon Corporation | Perfusion filter catheter |
US6183482B1 (en) | 1997-10-01 | 2001-02-06 | Scimed Life Systems, Inc. | Medical retrieval basket with legs shaped to enhance capture and reduce trauma |
US6099534A (en) | 1997-10-01 | 2000-08-08 | Scimed Life Systems, Inc. | Releasable basket |
US5980565A (en) | 1997-10-20 | 1999-11-09 | Iowa-India Investments Company Limited | Sandwich stent |
JP2001521779A (en) * | 1997-11-03 | 2001-11-13 | シー・アール・バード・インコーポレーテッド | Temporary vascular filter guidewire |
US6461370B1 (en) | 1998-11-03 | 2002-10-08 | C. R. Bard, Inc. | Temporary vascular filter guide wire |
ATE404123T1 (en) | 1997-11-12 | 2008-08-15 | Genesis Technologies Llc | DEVICE FOR REMOVAL OF OCCLUSIONS IN BIOLOGICAL PASSAGES |
US20040260333A1 (en) | 1997-11-12 | 2004-12-23 | Dubrul William R. | Medical device and method |
US6443972B1 (en) | 1997-11-19 | 2002-09-03 | Cordis Europa N.V. | Vascular filter |
US6136015A (en) | 1998-08-25 | 2000-10-24 | Micrus Corporation | Vasoocclusive coil |
US6695864B2 (en) | 1997-12-15 | 2004-02-24 | Cardeon Corporation | Method and apparatus for cerebral embolic protection |
JP2002502626A (en) | 1998-02-10 | 2002-01-29 | アーテミス・メディカル・インコーポレイテッド | Supplementary device and method of using the same |
ES2343228T3 (en) | 1998-02-10 | 2010-07-26 | Ethicon Endo-Surgery, Inc. | OCLUSION, ANCHORAGE, TENSIONING OR STEERING EQUIPMENT BY FLOW. |
US20050131453A1 (en) | 1998-03-13 | 2005-06-16 | Parodi Juan C. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
US6206868B1 (en) | 1998-03-13 | 2001-03-27 | Arteria Medical Science, Inc. | Protective device and method against embolization during treatment of carotid artery disease |
US6423032B2 (en) | 1998-03-13 | 2002-07-23 | Arteria Medical Science, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
EP1067885B1 (en) | 1998-04-02 | 2006-10-18 | Salviac Limited | Delivery catheter |
IE980241A1 (en) | 1998-04-02 | 1999-10-20 | Salviac Ltd | Delivery catheter with split sheath |
US5944728A (en) | 1998-04-23 | 1999-08-31 | Boston Scientific Corporation | Surgical retrieval basket with the ability to capture and release material |
US6132389A (en) * | 1998-04-23 | 2000-10-17 | Advanced Cardiovascular Systems, Inc. | Proximally tapered guidewire tip coil |
US6450989B2 (en) | 1998-04-27 | 2002-09-17 | Artemis Medical, Inc. | Dilating and support apparatus with disease inhibitors and methods for use |
US6007557A (en) | 1998-04-29 | 1999-12-28 | Embol-X, Inc. | Adjustable blood filtration system |
US6908474B2 (en) | 1998-05-13 | 2005-06-21 | Gore Enterprise Holdings, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
WO1999062432A1 (en) | 1998-06-04 | 1999-12-09 | New York University | Endovascular thin film devices and methods for treating and preventing stroke |
IL124958A0 (en) | 1998-06-16 | 1999-01-26 | Yodfat Ofer | Implantable blood filtering device |
US6241746B1 (en) | 1998-06-29 | 2001-06-05 | Cordis Corporation | Vascular filter convertible to a stent and method |
NL1009551C2 (en) | 1998-07-03 | 2000-01-07 | Cordis Europ | Vena cava filter with improvements for controlled ejection. |
US6231588B1 (en) | 1998-08-04 | 2001-05-15 | Percusurge, Inc. | Low profile catheter for angioplasty and occlusion |
US6306163B1 (en) | 1998-08-04 | 2001-10-23 | Advanced Cardiovascular Systems, Inc. | Assembly for collecting emboli and method of use |
US6251119B1 (en) | 1998-08-07 | 2001-06-26 | Embol-X, Inc. | Direct stick tear-away introducer and methods of use |
US6328755B1 (en) | 1998-09-24 | 2001-12-11 | Scimed Life Systems, Inc. | Filter delivery device |
US6051014A (en) | 1998-10-13 | 2000-04-18 | Embol-X, Inc. | Percutaneous filtration catheter for valve repair surgery and methods of use |
US7128073B1 (en) | 1998-11-06 | 2006-10-31 | Ev3 Endovascular, Inc. | Method and device for left atrial appendage occlusion |
US7044134B2 (en) | 1999-11-08 | 2006-05-16 | Ev3 Sunnyvale, Inc | Method of implanting a device in the left atrial appendage |
US6083239A (en) | 1998-11-24 | 2000-07-04 | Embol-X, Inc. | Compliant framework and methods of use |
US6652554B1 (en) | 1999-01-04 | 2003-11-25 | Mark H. Wholey | Instrument for thromboembolic protection |
US6896690B1 (en) | 2000-01-27 | 2005-05-24 | Viacor, Inc. | Cardiac valve procedure methods and devices |
AU2315500A (en) | 1999-01-28 | 2000-08-18 | Ansamed Limited | Catheter with an expandable end portion |
US20020138094A1 (en) | 1999-02-12 | 2002-09-26 | Thomas Borillo | Vascular filter system |
US6355051B1 (en) | 1999-03-04 | 2002-03-12 | Bioguide Consulting, Inc. | Guidewire filter device |
US20020169474A1 (en) | 1999-03-08 | 2002-11-14 | Microvena Corporation | Minimally invasive medical device deployment and retrieval system |
US6632236B2 (en) | 1999-03-12 | 2003-10-14 | Arteria Medical Science, Inc. | Catheter having radially expandable main body |
US6245012B1 (en) | 1999-03-19 | 2001-06-12 | Nmt Medical, Inc. | Free standing filter |
US6893450B2 (en) | 1999-03-26 | 2005-05-17 | Cook Urological Incorporated | Minimally-invasive medical retrieval device |
US6277138B1 (en) * | 1999-08-17 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Filter for embolic material mounted on expandable frame |
US6277139B1 (en) | 1999-04-01 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Vascular protection and embolic material retriever |
US6537296B2 (en) | 1999-04-01 | 2003-03-25 | Scion Cardio-Vascular, Inc. | Locking frame, filter and deployment system |
US6743247B1 (en) | 1999-04-01 | 2004-06-01 | Scion Cardio-Vascular, Inc. | Locking frame, filter and deployment system |
US7150756B2 (en) | 1999-04-01 | 2006-12-19 | Scion Cardio-Vascular, Inc | Radiopaque locking frame, filter and flexible end |
US6918921B2 (en) | 1999-05-07 | 2005-07-19 | Salviac Limited | Support frame for an embolic protection device |
WO2000067666A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Improved filter element for embolic protection device |
EP1176923A1 (en) | 1999-05-07 | 2002-02-06 | Salviac Limited | An embolic protection device |
US20020058911A1 (en) | 1999-05-07 | 2002-05-16 | Paul Gilson | Support frame for an embolic protection device |
WO2000067665A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Support frame for embolic protection device |
US6964672B2 (en) | 1999-05-07 | 2005-11-15 | Salviac Limited | Support frame for an embolic protection device |
US7037320B2 (en) | 2001-12-21 | 2006-05-02 | Salviac Limited | Support frame for an embolic protection device |
US7014647B2 (en) | 1999-05-07 | 2006-03-21 | Salviac Limited | Support frame for an embolic protection device |
US6585756B1 (en) | 1999-05-14 | 2003-07-01 | Ernst P. Strecker | Implantable lumen prosthesis |
US6458139B1 (en) | 1999-06-21 | 2002-10-01 | Endovascular Technologies, Inc. | Filter/emboli extractor for use in variable sized blood vessels |
US6364900B1 (en) | 1999-07-14 | 2002-04-02 | Richard R. Heuser | Embolism prevention device |
US6468291B2 (en) | 1999-07-16 | 2002-10-22 | Baff Llc | Emboli filtration system having integral strut arrangement and methods of use |
US20030150821A1 (en) | 1999-07-16 | 2003-08-14 | Bates Mark C. | Emboli filtration system and methods of use |
US6485507B1 (en) | 1999-07-28 | 2002-11-26 | Scimed Life Systems | Multi-property nitinol by heat treatment |
US6616679B1 (en) | 1999-07-30 | 2003-09-09 | Incept, Llc | Rapid exchange vascular device for emboli and thrombus removal and methods of use |
US6620182B1 (en) | 1999-07-30 | 2003-09-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US7320697B2 (en) | 1999-07-30 | 2008-01-22 | Boston Scientific Scimed, Inc. | One piece loop and coil |
US7306618B2 (en) | 1999-07-30 | 2007-12-11 | Incept Llc | Vascular device for emboli and thrombi removal and methods of use |
US6544279B1 (en) | 2000-08-09 | 2003-04-08 | Incept, Llc | Vascular device for emboli, thrombus and foreign body removal and methods of use |
US6203561B1 (en) | 1999-07-30 | 2001-03-20 | Incept Llc | Integrated vascular device having thrombectomy element and vascular filter and methods of use |
US6530939B1 (en) | 1999-07-30 | 2003-03-11 | Incept, Llc | Vascular device having articulation region and methods of use |
US6371970B1 (en) | 1999-07-30 | 2002-04-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US7229462B2 (en) * | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for carotid endarterectomy |
US6214026B1 (en) | 1999-07-30 | 2001-04-10 | Incept Llc | Delivery system for a vascular device with articulation region |
US6589263B1 (en) | 1999-07-30 | 2003-07-08 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
WO2001008742A1 (en) | 1999-07-30 | 2001-02-08 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US7229463B2 (en) | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for cardiopulmonary bypass |
US6142987A (en) | 1999-08-03 | 2000-11-07 | Scimed Life Systems, Inc. | Guided filter with support wire and methods of use |
US6245087B1 (en) | 1999-08-03 | 2001-06-12 | Embol-X, Inc. | Variable expansion frame system for deploying medical devices and methods of use |
US6273901B1 (en) | 1999-08-10 | 2001-08-14 | Scimed Life Systems, Inc. | Thrombosis filter having a surface treatment |
US6251122B1 (en) | 1999-09-02 | 2001-06-26 | Scimed Life Systems, Inc. | Intravascular filter retrieval device and method |
US6325815B1 (en) | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
US6939361B1 (en) | 1999-09-22 | 2005-09-06 | Nmt Medical, Inc. | Guidewire for a free standing intervascular device having an integral stop mechanism |
US6375670B1 (en) | 1999-10-07 | 2002-04-23 | Prodesco, Inc. | Intraluminal filter |
US6364895B1 (en) | 1999-10-07 | 2002-04-02 | Prodesco, Inc. | Intraluminal filter |
US6264672B1 (en) | 1999-10-25 | 2001-07-24 | Biopsy Sciences, Llc | Emboli capturing device |
US6425909B1 (en) | 1999-11-04 | 2002-07-30 | Concentric Medical, Inc. | Methods and devices for filtering fluid flow through a body structure |
AU1623201A (en) | 1999-11-18 | 2001-05-30 | Advanced Cardiovascular Systems Inc. | Embolic protection system and method including an emboli-capturing catheter |
US6623450B1 (en) | 1999-12-17 | 2003-09-23 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel |
US6443979B1 (en) | 1999-12-20 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | Expandable stent delivery sheath and method of use |
US6443971B1 (en) | 1999-12-21 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | System for, and method of, blocking the passage of emboli through a vessel |
US6575997B1 (en) | 1999-12-23 | 2003-06-10 | Endovascular Technologies, Inc. | Embolic basket |
US6660021B1 (en) | 1999-12-23 | 2003-12-09 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US6402771B1 (en) | 1999-12-23 | 2002-06-11 | Guidant Endovascular Solutions | Snare |
US6406471B1 (en) | 1999-12-28 | 2002-06-18 | Embol-X, Inc. | Arterial filter with aspiration and methods of use |
US6290710B1 (en) | 1999-12-29 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Embolic protection device |
US6383206B1 (en) | 1999-12-30 | 2002-05-07 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including filtering elements |
US6290656B1 (en) | 1999-12-30 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Guide wire with damped force vibration mechanism |
US6540722B1 (en) | 1999-12-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6695813B1 (en) | 1999-12-30 | 2004-02-24 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6702834B1 (en) | 1999-12-30 | 2004-03-09 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6645220B1 (en) | 1999-12-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including and embolic-capturing filter |
US6361546B1 (en) | 2000-01-13 | 2002-03-26 | Endotex Interventional Systems, Inc. | Deployable recoverable vascular filter and methods for use |
EP1251900B1 (en) | 2000-02-01 | 2007-05-02 | KLETSCHKA, Harold D. | Angioplasty device |
US6443926B1 (en) | 2000-02-01 | 2002-09-03 | Harold D. Kletschka | Embolic protection device having expandable trap |
US6540767B1 (en) | 2000-02-08 | 2003-04-01 | Scimed Life Systems, Inc. | Recoilable thrombosis filtering device and method |
US6540768B1 (en) | 2000-02-09 | 2003-04-01 | Cordis Corporation | Vascular filter system |
US6863696B2 (en) | 2000-02-16 | 2005-03-08 | Viktoria Kantsevitcha | Vascular prosthesis |
US6629953B1 (en) | 2000-02-18 | 2003-10-07 | Fox Hollow Technologies, Inc. | Methods and devices for removing material from a vascular site |
WO2001062184A2 (en) | 2000-02-23 | 2001-08-30 | Boston Scientific Limited | Intravascular filtering devices and methods |
EP1253871B1 (en) | 2000-03-10 | 2007-02-14 | Anthony T. Don Michael | Vascular embolism preventon device employing filters |
US6695865B2 (en) | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
US6485500B1 (en) | 2000-03-21 | 2002-11-26 | Advanced Cardiovascular Systems, Inc. | Emboli protection system |
US6632241B1 (en) | 2000-03-22 | 2003-10-14 | Endovascular Technologies, Inc. | Self-expanding, pseudo-braided intravascular device |
US20040167567A1 (en) | 2001-03-23 | 2004-08-26 | Cano Gerald G. | Method and apparatus for capturing objects beyond an operative site in medical procedures |
US6592616B1 (en) | 2000-04-28 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | System and device for minimizing embolic risk during an interventional procedure |
US6706053B1 (en) | 2000-04-28 | 2004-03-16 | Advanced Cardiovascular Systems, Inc. | Nitinol alloy design for sheath deployable and re-sheathable vascular devices |
US6602271B2 (en) | 2000-05-24 | 2003-08-05 | Medtronic Ave, Inc. | Collapsible blood filter with optimal braid geometry |
US6645221B1 (en) | 2000-05-30 | 2003-11-11 | Zuli, Holdings Ltd. | Active arterial embolization filter |
US6939362B2 (en) | 2001-11-27 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Offset proximal cage for embolic filtering devices |
US6565591B2 (en) | 2000-06-23 | 2003-05-20 | Salviac Limited | Medical device |
US6663650B2 (en) | 2000-06-29 | 2003-12-16 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US8298257B2 (en) | 2000-06-29 | 2012-10-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US6482222B1 (en) | 2000-07-11 | 2002-11-19 | Rafael Medical Technologies Inc. | Intravascular filter |
US6964670B1 (en) | 2000-07-13 | 2005-11-15 | Advanced Cardiovascular Systems, Inc. | Embolic protection guide wire |
US6656202B2 (en) | 2000-07-14 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Embolic protection systems |
US6575995B1 (en) | 2000-07-14 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Expandable cage embolic material filter system and method |
US6740061B1 (en) | 2000-07-28 | 2004-05-25 | Ev3 Inc. | Distal protection device |
US6527746B1 (en) | 2000-08-03 | 2003-03-04 | Ev3, Inc. | Back-loading catheter |
AU2001283033A1 (en) | 2000-08-04 | 2002-02-18 | Duke University | Temporary vascular filters and methods |
US6394978B1 (en) | 2000-08-09 | 2002-05-28 | Advanced Cardiovascular Systems, Inc. | Interventional procedure expandable balloon expansion enabling system and method |
US6485501B1 (en) | 2000-08-11 | 2002-11-26 | Cordis Corporation | Vascular filter system with guidewire and capture mechanism |
US20020022860A1 (en) | 2000-08-18 | 2002-02-21 | Borillo Thomas E. | Expandable implant devices for filtering blood flow from atrial appendages |
US6558405B1 (en) | 2000-08-29 | 2003-05-06 | Advanced Cardiovascular Systems, Inc. | Embolic filter |
FR2813518B1 (en) | 2000-09-04 | 2002-10-31 | Claude Mialhe | VASCULAR OCCLUSION DEVICE, APPARATUS AND METHOD OF USE |
US6723108B1 (en) | 2000-09-18 | 2004-04-20 | Cordis Neurovascular, Inc | Foam matrix embolization device |
US6537294B1 (en) | 2000-10-17 | 2003-03-25 | Advanced Cardiovascular Systems, Inc. | Delivery systems for embolic filter devices |
AU2002213231A1 (en) | 2000-10-18 | 2002-04-29 | Nmt Medical, Inc. | Over-the-wire interlock attachment/detachment mechanism |
US6582447B1 (en) | 2000-10-20 | 2003-06-24 | Angiodynamics, Inc. | Convertible blood clot filter |
US6589265B1 (en) | 2000-10-31 | 2003-07-08 | Endovascular Technologies, Inc. | Intrasaccular embolic device |
US6616680B1 (en) | 2000-11-01 | 2003-09-09 | Joseph M. Thielen | Distal protection and delivery system and method |
US6602272B2 (en) | 2000-11-02 | 2003-08-05 | Advanced Cardiovascular Systems, Inc. | Devices configured from heat shaped, strain hardened nickel-titanium |
US6893451B2 (en) | 2000-11-09 | 2005-05-17 | Advanced Cardiovascular Systems, Inc. | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US6726703B2 (en) * | 2000-11-27 | 2004-04-27 | Scimed Life Systems, Inc. | Distal protection device and method |
SK7482003A3 (en) | 2000-12-15 | 2004-04-06 | Agrolinz Melamin Gmbh | Modified inorganic particles |
US6936059B2 (en) | 2001-01-16 | 2005-08-30 | Scimed Life Systems, Inc. | Endovascular guidewire filter and methods of use |
US6663651B2 (en) | 2001-01-16 | 2003-12-16 | Incept Llc | Systems and methods for vascular filter retrieval |
US7169165B2 (en) | 2001-01-16 | 2007-01-30 | Boston Scientific Scimed, Inc. | Rapid exchange sheath for deployment of medical devices and methods of use |
US6610077B1 (en) | 2001-01-23 | 2003-08-26 | Endovascular Technologies, Inc. | Expandable emboli filter and thrombectomy device |
US6689151B2 (en) * | 2001-01-25 | 2004-02-10 | Scimed Life Systems, Inc. | Variable wall thickness for delivery sheath housing |
US20020128680A1 (en) | 2001-01-25 | 2002-09-12 | Pavlovic Jennifer L. | Distal protection device with electrospun polymer fiber matrix |
US6979343B2 (en) | 2001-02-14 | 2005-12-27 | Ev3 Inc. | Rolled tip recovery catheter |
US6569184B2 (en) | 2001-02-27 | 2003-05-27 | Advanced Cardiovascular Systems, Inc. | Recovery system for retrieving an embolic protection device |
US6974468B2 (en) | 2001-02-28 | 2005-12-13 | Scimed Life Systems, Inc. | Filter retrieval catheter |
US20020123755A1 (en) | 2001-03-01 | 2002-09-05 | Scimed Life Systems, Inc. | Embolic protection filter delivery sheath |
US7226464B2 (en) | 2001-03-01 | 2007-06-05 | Scimed Life Systems, Inc. | Intravascular filter retrieval device having an actuatable dilator tip |
US6562058B2 (en) | 2001-03-02 | 2003-05-13 | Jacques Seguin | Intravascular filter system |
WO2002071977A2 (en) | 2001-03-08 | 2002-09-19 | Atritech, Inc. | Atrial filter implants |
US20020128679A1 (en) | 2001-03-08 | 2002-09-12 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and methods of use |
US7214237B2 (en) | 2001-03-12 | 2007-05-08 | Don Michael T Anthony | Vascular filter with improved strength and flexibility |
US8298160B2 (en) | 2001-03-16 | 2012-10-30 | Ev3 Inc. | Wire convertible from over-the-wire length to rapid exchange length |
US6602269B2 (en) | 2001-03-30 | 2003-08-05 | Scimed Life Systems | Embolic devices capable of in-situ reinforcement |
US7101379B2 (en) | 2001-04-02 | 2006-09-05 | Acmi Corporation | Retrieval basket for a surgical device and system and method for manufacturing same |
US6706055B2 (en) | 2001-04-03 | 2004-03-16 | Medtronic Ave Inc. | Guidewire apparatus for temporary distal embolic protection |
US6911036B2 (en) | 2001-04-03 | 2005-06-28 | Medtronic Vascular, Inc. | Guidewire apparatus for temporary distal embolic protection |
US6866677B2 (en) * | 2001-04-03 | 2005-03-15 | Medtronic Ave, Inc. | Temporary intraluminal filter guidewire and methods of use |
US6818006B2 (en) | 2001-04-03 | 2004-11-16 | Medtronic Vascular, Inc. | Temporary intraluminal filter guidewire |
US6428559B1 (en) | 2001-04-03 | 2002-08-06 | Cordis Corporation | Removable, variable-diameter vascular filter system |
US7044958B2 (en) | 2001-04-03 | 2006-05-16 | Medtronic Vascular, Inc. | Temporary device for capturing embolic material |
US20020161395A1 (en) * | 2001-04-03 | 2002-10-31 | Nareak Douk | Guide wire apparatus for prevention of distal atheroembolization |
DE60210059T2 (en) | 2001-04-17 | 2006-10-26 | Salviac Ltd. | CATHETER |
US6436121B1 (en) | 2001-04-30 | 2002-08-20 | Paul H. Blom | Removable blood filter |
US6746469B2 (en) | 2001-04-30 | 2004-06-08 | Advanced Cardiovascular Systems, Inc. | Balloon actuated apparatus having multiple embolic filters, and method of use |
US6645223B2 (en) | 2001-04-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Deployment and recovery control systems for embolic protection devices |
US6814739B2 (en) | 2001-05-18 | 2004-11-09 | U.S. Endoscopy Group, Inc. | Retrieval device |
US6635070B2 (en) | 2001-05-21 | 2003-10-21 | Bacchus Vascular, Inc. | Apparatus and methods for capturing particulate material within blood vessels |
US6929652B1 (en) | 2001-06-01 | 2005-08-16 | Advanced Cardiovascular Systems, Inc. | Delivery and recovery systems having steerability and rapid exchange operating modes for embolic protection systems |
US20020188314A1 (en) | 2001-06-07 | 2002-12-12 | Microvena Corporation | Radiopaque distal embolic protection device |
US6551341B2 (en) | 2001-06-14 | 2003-04-22 | Advanced Cardiovascular Systems, Inc. | Devices configured from strain hardened Ni Ti tubing |
US6783538B2 (en) | 2001-06-18 | 2004-08-31 | Rex Medical, L.P | Removable vein filter |
US6623506B2 (en) | 2001-06-18 | 2003-09-23 | Rex Medical, L.P | Vein filter |
US6793665B2 (en) | 2001-06-18 | 2004-09-21 | Rex Medical, L.P. | Multiple access vein filter |
US20030125764A1 (en) | 2001-06-27 | 2003-07-03 | Eamon Brady | Catheter |
US7789860B2 (en) | 2001-06-27 | 2010-09-07 | Salviac Limited | Catheter for delivery and/or retrieval of a medical device |
IL159572A0 (en) | 2001-06-28 | 2004-06-01 | Lithotech Medical Ltd | Foreign body retrieval device |
US6599307B1 (en) * | 2001-06-29 | 2003-07-29 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection systems |
US6575996B1 (en) | 2001-06-29 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection system |
JP4567918B2 (en) | 2001-07-02 | 2010-10-27 | テルモ株式会社 | Intravascular foreign matter removal wire and medical device |
US7011671B2 (en) | 2001-07-18 | 2006-03-14 | Atritech, Inc. | Cardiac implant device tether system and method |
US6533800B1 (en) | 2001-07-25 | 2003-03-18 | Coaxia, Inc. | Devices and methods for preventing distal embolization using flow reversal in arteries having collateral blood flow |
US6902540B2 (en) | 2001-08-22 | 2005-06-07 | Gerald Dorros | Apparatus and methods for treating stroke and controlling cerebral flow characteristics |
US6551342B1 (en) | 2001-08-24 | 2003-04-22 | Endovascular Technologies, Inc. | Embolic filter |
US6652557B1 (en) | 2001-08-29 | 2003-11-25 | Macdonald Kenneth A. | Mechanism for capturing debris generated during vascular procedures |
US6638294B1 (en) | 2001-08-30 | 2003-10-28 | Advanced Cardiovascular Systems, Inc. | Self furling umbrella frame for carotid filter |
US6656351B2 (en) | 2001-08-31 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices one way porous membrane |
US7097651B2 (en) | 2001-09-06 | 2006-08-29 | Advanced Cardiovascular Systems, Inc. | Embolic protection basket |
US6616682B2 (en) | 2001-09-19 | 2003-09-09 | Jomed Gmbh | Methods and apparatus for distal protection during a medical procedure |
US6878151B2 (en) | 2001-09-27 | 2005-04-12 | Scimed Life Systems, Inc. | Medical retrieval device |
US20030060843A1 (en) | 2001-09-27 | 2003-03-27 | Don Boucher | Vascular filter system with encapsulated filter |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US6755847B2 (en) | 2001-10-05 | 2004-06-29 | Scimed Life Systems, Inc. | Emboli capturing device and method of manufacture therefor |
US20030069597A1 (en) | 2001-10-10 | 2003-04-10 | Scimed Life Systems, Inc. | Loading tool |
US6887257B2 (en) | 2001-10-19 | 2005-05-03 | Incept Llc | Vascular embolic filter exchange devices and methods of use thereof |
US20030083692A1 (en) | 2001-10-29 | 2003-05-01 | Scimed Life Systems, Inc. | Distal protection device and method of use thereof |
US6790219B1 (en) | 2001-11-06 | 2004-09-14 | Edwards Lifesciences Corporation | Filter with integrated obturator tip and methods of use |
US20030109824A1 (en) | 2001-11-07 | 2003-06-12 | Microvena Corporation | Distal protection device with local drug delivery to maintain patency |
US6890340B2 (en) | 2001-11-29 | 2005-05-10 | Medtronic Vascular, Inc. | Apparatus for temporary intraluminal protection |
US7232453B2 (en) | 2001-12-05 | 2007-06-19 | Sagax, Inc. | Endovascular device for entrapment of particulate matter and method for use |
US7153320B2 (en) | 2001-12-13 | 2006-12-26 | Scimed Life Systems, Inc. | Hydraulic controlled retractable tip filter retrieval catheter |
US6741878B2 (en) | 2001-12-14 | 2004-05-25 | Biosense Webster, Inc. | Basket catheter with improved expansion mechanism |
US6748255B2 (en) | 2001-12-14 | 2004-06-08 | Biosense Webster, Inc. | Basket catheter with multiple location sensors |
US6793666B2 (en) | 2001-12-18 | 2004-09-21 | Scimed Life Systems, Inc. | Distal protection mechanically attached filter cartridge |
US7241304B2 (en) | 2001-12-21 | 2007-07-10 | Advanced Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
US6958074B2 (en) | 2002-01-07 | 2005-10-25 | Cordis Corporation | Releasable and retrievable vascular filter system |
US8647359B2 (en) | 2002-01-10 | 2014-02-11 | Boston Scientific Scimed, Inc. | Distal protection filter |
US6932830B2 (en) | 2002-01-10 | 2005-08-23 | Scimed Life Systems, Inc. | Disc shaped filter |
US20030135162A1 (en) | 2002-01-17 | 2003-07-17 | Scimed Life Systems, Inc. | Delivery and retrieval manifold for a distal protection filter |
US20030144686A1 (en) | 2002-01-30 | 2003-07-31 | Embol-X, Inc. | Distal filtration devices and methods of use during aortic procedures |
US7344549B2 (en) | 2002-01-31 | 2008-03-18 | Advanced Cardiovascular Systems, Inc. | Expandable cages for embolic filtering devices |
US6953471B1 (en) | 2002-02-07 | 2005-10-11 | Edwards Lifesciences Corporation | Cannula with flexible remote cable filter deployment |
US6997938B2 (en) | 2002-02-12 | 2006-02-14 | Scimed Life Systems, Inc. | Embolic protection device |
US20030158574A1 (en) | 2002-02-15 | 2003-08-21 | Esch Brady D. | Flow-through aortic flow divider for cerebral and coronary embolic protection |
US7004964B2 (en) | 2002-02-22 | 2006-02-28 | Scimed Life Systems, Inc. | Apparatus and method for deployment of an endoluminal device |
US7118539B2 (en) | 2002-02-26 | 2006-10-10 | Scimed Life Systems, Inc. | Articulating guide wire for embolic protection and methods of use |
ATE378019T1 (en) | 2002-03-05 | 2007-11-15 | Salviac Ltd | EMBOLIC FILTER AND RETRACTION LOOP SYSTEM |
US7192434B2 (en) | 2002-03-08 | 2007-03-20 | Ev3 Inc. | Vascular protection devices and methods of use |
US6866679B2 (en) | 2002-03-12 | 2005-03-15 | Ev3 Inc. | Everting stent and stent delivery system |
US20030176886A1 (en) | 2002-03-12 | 2003-09-18 | Wholey Mark H. | Vascular catheter with expanded distal tip for receiving a thromboembolic protection device and method of use |
US20030176884A1 (en) | 2002-03-12 | 2003-09-18 | Marwane Berrada | Everted filter device |
US7029440B2 (en) | 2002-03-13 | 2006-04-18 | Scimed Life Systems, Inc. | Distal protection filter and method of manufacture |
US20030187495A1 (en) | 2002-04-01 | 2003-10-02 | Cully Edward H. | Endoluminal devices, embolic filters, methods of manufacture and use |
US20030191493A1 (en) | 2002-04-05 | 2003-10-09 | Epstein Gordon H. | Device for clot retrieval and distal protection |
US20030199819A1 (en) | 2002-04-17 | 2003-10-23 | Beck Robert C. | Filter wire system |
US20030204168A1 (en) | 2002-04-30 | 2003-10-30 | Gjalt Bosma | Coated vascular devices |
US7060082B2 (en) | 2002-05-06 | 2006-06-13 | Scimed Life Systems, Inc. | Perfusion guidewire in combination with a distal filter |
US8070769B2 (en) | 2002-05-06 | 2011-12-06 | Boston Scientific Scimed, Inc. | Inverted embolic protection filter |
ATE414486T1 (en) | 2002-05-10 | 2008-12-15 | Salviac Ltd | SYSTEM FOR FILTERING EMBOLI |
US7585309B2 (en) | 2002-05-16 | 2009-09-08 | Boston Scientific Scimed, Inc. | Aortic filter |
US7001406B2 (en) | 2002-05-23 | 2006-02-21 | Scimed Life Systems Inc. | Cartridge embolic protection filter and methods of use |
US7959584B2 (en) | 2002-05-29 | 2011-06-14 | Boston Scientific Scimed, Inc. | Dedicated distal protection guidewires |
US7326224B2 (en) | 2002-06-11 | 2008-02-05 | Boston Scientific Scimed, Inc. | Shaft and wire lock |
US7717934B2 (en) | 2002-06-14 | 2010-05-18 | Ev3 Inc. | Rapid exchange catheters usable with embolic protection devices |
US6696666B2 (en) | 2002-07-03 | 2004-02-24 | Scimed Life Systems, Inc. | Tubular cutting process and system |
US6969402B2 (en) | 2002-07-26 | 2005-11-29 | Syntheon, Llc | Helical stent having flexible transition zone |
US7303575B2 (en) | 2002-08-01 | 2007-12-04 | Lumen Biomedical, Inc. | Embolism protection devices |
US6969395B2 (en) | 2002-08-07 | 2005-11-29 | Boston Scientific Scimed, Inc. | Electroactive polymer actuated medical devices |
US7115138B2 (en) | 2002-09-04 | 2006-10-03 | Boston Scientific Scimed, Inc. | Sheath tip |
US7174636B2 (en) | 2002-09-04 | 2007-02-13 | Scimed Life Systems, Inc. | Method of making an embolic filter |
US7056328B2 (en) | 2002-09-18 | 2006-06-06 | Arnott Richard J | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US7252675B2 (en) | 2002-09-30 | 2007-08-07 | Advanced Cardiovascular, Inc. | Embolic filtering devices |
US7331973B2 (en) | 2002-09-30 | 2008-02-19 | Avdanced Cardiovascular Systems, Inc. | Guide wire with embolic filtering attachment |
US20040093011A1 (en) | 2002-10-01 | 2004-05-13 | Scimed Life Systems, Inc. | Embolic protection device with lesion length assessment markers |
US7998163B2 (en) | 2002-10-03 | 2011-08-16 | Boston Scientific Scimed, Inc. | Expandable retrieval device |
AU2003300038A1 (en) | 2002-10-11 | 2004-05-04 | Scimed Life Systems, Inc. | Embolic entrapment sheath |
US20040093012A1 (en) | 2002-10-17 | 2004-05-13 | Cully Edward H. | Embolic filter frame having looped support strut elements |
US7481823B2 (en) | 2002-10-25 | 2009-01-27 | Boston Scientific Scimed, Inc. | Multiple membrane embolic protection filter |
JP2006514846A (en) | 2002-10-29 | 2006-05-18 | サード ピーコック、ジェームス、シー. | Emboli filter device and related system and method |
US20040088000A1 (en) | 2002-10-31 | 2004-05-06 | Muller Paul F. | Single-wire expandable cages for embolic filtering devices |
US20040098022A1 (en) | 2002-11-14 | 2004-05-20 | Barone David D. | Intraluminal catheter with hydraulically collapsible self-expanding protection device |
US20040111111A1 (en) | 2002-12-10 | 2004-06-10 | Scimed Life Systems, Inc. | Intravascular filter membrane with shape memory |
US7128752B2 (en) | 2002-12-23 | 2006-10-31 | Syntheon, Llc | Emboli and thrombi filter device and method of using the same |
US7625389B2 (en) | 2002-12-30 | 2009-12-01 | Boston Scientific Scimed, Inc. | Embolic protection device |
US20040138693A1 (en) | 2003-01-14 | 2004-07-15 | Scimed Life Systems, Inc. | Snare retrievable embolic protection filter with guidewire stopper |
US20040138694A1 (en) | 2003-01-15 | 2004-07-15 | Scimed Life Systems, Inc. | Intravascular filtering membrane and method of making an embolic protection filter device |
US7422595B2 (en) | 2003-01-17 | 2008-09-09 | Scion Cardio-Vascular, Inc. | Proximal actuator for medical device |
US20040147955A1 (en) | 2003-01-28 | 2004-07-29 | Scimed Life Systems, Inc. | Embolic protection filter having an improved filter frame |
US20040153119A1 (en) | 2003-01-30 | 2004-08-05 | Kusleika Richard S. | Embolic filters with a distal loop or no loop |
US7220271B2 (en) | 2003-01-30 | 2007-05-22 | Ev3 Inc. | Embolic filters having multiple layers and controlled pore size |
US7163549B2 (en) | 2003-02-11 | 2007-01-16 | Boston Scientific Scimed Inc. | Filter membrane manufacturing method |
JP2004261235A (en) | 2003-02-20 | 2004-09-24 | Kaneka Medix Corp | Medical wire device |
US7137991B2 (en) | 2003-02-24 | 2006-11-21 | Scimed Life Systems, Inc. | Multi-wire embolic protection filtering device |
US7740644B2 (en) | 2003-02-24 | 2010-06-22 | Boston Scientific Scimed, Inc. | Embolic protection filtering device that can be adapted to be advanced over a guidewire |
US6878291B2 (en) * | 2003-02-24 | 2005-04-12 | Scimed Life Systems, Inc. | Flexible tube for cartridge filter |
US20040167566A1 (en) | 2003-02-24 | 2004-08-26 | Scimed Life Systems, Inc. | Apparatus for anchoring an intravascular device along a guidewire |
US20040172055A1 (en) | 2003-02-27 | 2004-09-02 | Huter Scott J. | Embolic filtering devices |
US7909862B2 (en) | 2003-03-19 | 2011-03-22 | Cook Medical Technologies Llc | Delivery systems and methods for deploying expandable intraluminal medical devices |
US20040193208A1 (en) | 2003-03-27 | 2004-09-30 | Scimed Life Systems, Inc. | Radiopaque embolic protection filter membrane |
US6960370B2 (en) | 2003-03-27 | 2005-11-01 | Scimed Life Systems, Inc. | Methods of forming medical devices |
EP1608295B1 (en) | 2003-03-28 | 2017-05-03 | Covidien LP | Double ended intravascular medical device |
US20040199199A1 (en) | 2003-04-02 | 2004-10-07 | Scimed Life Systems, Inc. | Filter and method of making a filter |
US6902572B2 (en) | 2003-04-02 | 2005-06-07 | Scimed Life Systems, Inc. | Anchoring mechanisms for intravascular devices |
US20040204737A1 (en) | 2003-04-11 | 2004-10-14 | Scimed Life Systems, Inc. | Embolic filter loop fabricated from composite material |
US7591832B2 (en) | 2003-04-24 | 2009-09-22 | Medtronic, Inc. | Expandable guide sheath and apparatus with distal protection and methods for use |
US7597704B2 (en) * | 2003-04-28 | 2009-10-06 | Atritech, Inc. | Left atrial appendage occlusion device with active expansion |
US7331976B2 (en) | 2003-04-29 | 2008-02-19 | Rex Medical, L.P. | Distal protection device |
US7942892B2 (en) | 2003-05-01 | 2011-05-17 | Abbott Cardiovascular Systems Inc. | Radiopaque nitinol embolic protection frame |
US6969396B2 (en) | 2003-05-07 | 2005-11-29 | Scimed Life Systems, Inc. | Filter membrane with increased surface area |
US20030179889A1 (en) | 2003-06-05 | 2003-09-25 | Daniel Pivinski | [Wireless Adapter for Wired Speakers] |
US20040249409A1 (en) | 2003-06-09 | 2004-12-09 | Scimed Life Systems, Inc. | Reinforced filter membrane |
US7537600B2 (en) | 2003-06-12 | 2009-05-26 | Boston Scientific Scimed, Inc. | Valved embolic protection filter |
US8535344B2 (en) | 2003-09-12 | 2013-09-17 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US20050070953A1 (en) | 2003-09-18 | 2005-03-31 | Riley James W. | Medical device with flexible distal end loop and related methods of use |
US7604650B2 (en) | 2003-10-06 | 2009-10-20 | 3F Therapeutics, Inc. | Method and assembly for distal embolic protection |
US6994718B2 (en) | 2003-10-29 | 2006-02-07 | Medtronic Vascular, Inc. | Distal protection device for filtering and occlusion |
US8048103B2 (en) | 2003-11-06 | 2011-11-01 | Boston Scientific Scimed, Inc. | Flattened tip filter wire design |
US6972025B2 (en) | 2003-11-18 | 2005-12-06 | Scimed Life Systems, Inc. | Intravascular filter with bioabsorbable centering element |
US7354445B2 (en) | 2003-12-15 | 2008-04-08 | Medtronic Vascular Inc. | Embolic containment system with asymmetric frictional control |
EP1699382A1 (en) | 2003-12-16 | 2006-09-13 | Mark H. Wholey | Vascular catheter with an expandable section and a distal tip for delivering a thromboembolic protection device and method of use |
US20050159773A1 (en) | 2004-01-20 | 2005-07-21 | Scimed Life Systems, Inc. | Expandable retrieval device with dilator tip |
US20050159772A1 (en) | 2004-01-20 | 2005-07-21 | Scimed Life Systems, Inc. | Sheath for use with an embolic protection filtering device |
US8092483B2 (en) | 2004-03-06 | 2012-01-10 | Medtronic, Inc. | Steerable device having a corewire within a tube and combination with a functional medical component |
US7473265B2 (en) | 2004-03-15 | 2009-01-06 | Boston Scientific Scimed, Inc. | Filter media and methods of manufacture |
US7232462B2 (en) | 2004-03-31 | 2007-06-19 | Cook Incorporated | Self centering delivery catheter |
US8403976B2 (en) | 2004-04-08 | 2013-03-26 | Contego Medical Llc | Percutaneous transluminal angioplasty device with integral embolic filter |
US20050240215A1 (en) | 2004-04-21 | 2005-10-27 | Scimed Life Systems, Inc. | Magnetic embolic protection device and method |
US7918872B2 (en) | 2004-07-30 | 2011-04-05 | Codman & Shurtleff, Inc. | Embolic device delivery system with retractable partially coiled-fiber release |
ATE520369T1 (en) | 2004-09-17 | 2011-09-15 | Nitinol Dev Corp | SHAPE MEMORY THIN FILM EMBOLIC PROTECTION DEVICE |
US8038696B2 (en) | 2004-12-06 | 2011-10-18 | Boston Scientific Scimed, Inc. | Sheath for use with an embolic protection filter |
US20060129181A1 (en) | 2004-12-13 | 2006-06-15 | Callol Joseph R | Retrieval device with retractable dilator tip |
US20060149313A1 (en) | 2004-12-30 | 2006-07-06 | Edward Arguello | Distal protection apparatus with improved wall apposition |
US20060149312A1 (en) | 2004-12-30 | 2006-07-06 | Edward Arguello | Distal protection device with improved wall apposition |
US7527637B2 (en) | 2005-01-07 | 2009-05-05 | Medtronic Vascular Inc. | Distal protection device for filtering and occlusion |
US20060206139A1 (en) | 2005-01-19 | 2006-09-14 | Tekulve Kurt J | Vascular occlusion device |
US20060184194A1 (en) | 2005-02-15 | 2006-08-17 | Cook Incorporated | Embolic protection device |
ES2380356T3 (en) | 2005-02-18 | 2012-05-10 | Tyco Healthcare Group Lp | Quick exchange catheter |
-
2002
- 2002-09-30 US US10/260,718 patent/US7331973B2/en not_active Expired - Fee Related
-
2003
- 2003-09-29 WO PCT/US2003/030546 patent/WO2004030575A1/en not_active Application Discontinuation
- 2003-09-29 AU AU2003282879A patent/AU2003282879A1/en not_active Abandoned
-
2008
- 2008-02-04 US US12/025,404 patent/US7815660B2/en not_active Expired - Fee Related
-
2010
- 2010-10-13 US US12/904,001 patent/US8029530B2/en not_active Expired - Fee Related
Patent Citations (99)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643184A (en) * | 1982-09-29 | 1987-02-17 | Mobin Uddin Kazi | Embolus trap |
US4494531A (en) * | 1982-12-06 | 1985-01-22 | Cook, Incorporated | Expandable blood clot filter |
US4723549A (en) * | 1986-09-18 | 1988-02-09 | Wholey Mark H | Method and apparatus for dilating blood vessels |
US4794928A (en) * | 1987-06-10 | 1989-01-03 | Kletschka Harold D | Angioplasty device and method of using the same |
US4990156A (en) * | 1988-06-21 | 1991-02-05 | Lefebvre Jean Marie | Filter for medical use |
US5599492A (en) * | 1990-03-19 | 1997-02-04 | Target Therapeutics, Inc. | Method for making a guidewire with a flexible distal tip |
US5595813A (en) * | 1992-09-22 | 1997-01-21 | Takenaka Corporation | Architectural material using metal oxide exhibiting photocatalytic activity |
US5490859A (en) * | 1992-11-13 | 1996-02-13 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
US5383887A (en) * | 1992-12-28 | 1995-01-24 | Celsa Lg | Device for selectively forming a temporary blood filter |
US5720764A (en) * | 1994-06-11 | 1998-02-24 | Naderlinger; Eduard | Vena cava thrombus filter |
US6682546B2 (en) * | 1994-07-08 | 2004-01-27 | Aga Medical Corporation | Intravascular occlusion devices |
US20040006368A1 (en) * | 1994-07-08 | 2004-01-08 | Ev3 Inc. | Method and device for filtering body fluid |
US20050021076A1 (en) * | 1994-07-08 | 2005-01-27 | Ev3 Inc. | Method and device for filtering body fluid |
US6989019B2 (en) * | 1994-07-08 | 2006-01-24 | Ev3 Inc. | Method and device for filtering body fluid |
US5601595A (en) * | 1994-10-25 | 1997-02-11 | Scimed Life Systems, Inc. | Remobable thrombus filter |
US6168604B1 (en) * | 1995-10-06 | 2001-01-02 | Metamorphic Surgical Devices, Llc | Guide wire device for removing solid objects from body canals |
US6013093A (en) * | 1995-11-28 | 2000-01-11 | Boston Scientific Corporation | Blood clot filtering |
US6022336A (en) * | 1996-05-20 | 2000-02-08 | Percusurge, Inc. | Catheter system for emboli containment |
US6986778B2 (en) * | 1996-05-20 | 2006-01-17 | Medtronic Vascular, Inc. | Exchange method for emboli containment |
US5868708A (en) * | 1997-05-07 | 1999-02-09 | Applied Medical Resources Corporation | Balloon catheter apparatus and method |
US6027520A (en) * | 1997-05-08 | 2000-02-22 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US6676682B1 (en) * | 1997-05-08 | 2004-01-13 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US20040006364A1 (en) * | 1997-06-02 | 2004-01-08 | Ladd William Gregory | Apparatus for trapping emboli |
US20040034385A1 (en) * | 1997-11-07 | 2004-02-19 | Paul Gilson | Embolic protection device |
US6336934B1 (en) * | 1997-11-07 | 2002-01-08 | Salviac Limited | Embolic protection device |
US20030009189A1 (en) * | 1997-11-07 | 2003-01-09 | Salviac Limited | Embolic protection device |
US20060004403A1 (en) * | 1997-11-07 | 2006-01-05 | Salviac Limited | Embolic protection system |
US20030032977A1 (en) * | 1997-11-07 | 2003-02-13 | Salviac Limited | Filter element with retractable guidewire tip |
US6174318B1 (en) * | 1998-04-23 | 2001-01-16 | Scimed Life Systems, Inc. | Basket with one or more moveable legs |
US6511492B1 (en) * | 1998-05-01 | 2003-01-28 | Microvention, Inc. | Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders |
US6179860B1 (en) * | 1998-08-19 | 2001-01-30 | Artemis Medical, Inc. | Target tissue localization device and method |
US6679903B2 (en) * | 1998-12-15 | 2004-01-20 | Micrus Corporation | Intravascular device push wire delivery system |
US6676666B2 (en) * | 1999-01-11 | 2004-01-13 | Scimed Life Systems, Inc | Medical device delivery system with two sheaths |
US20030040772A1 (en) * | 1999-02-01 | 2003-02-27 | Hideki Hyodoh | Delivery devices |
US6991641B2 (en) * | 1999-02-12 | 2006-01-31 | Cordis Corporation | Low profile vascular filter system |
US6171327B1 (en) * | 1999-02-24 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular filter and method |
US6340465B1 (en) * | 1999-04-12 | 2002-01-22 | Edwards Lifesciences Corp. | Lubricious coatings for medical devices |
US6517559B1 (en) * | 1999-05-03 | 2003-02-11 | O'connell Paul T. | Blood filter and method for treating vascular disease |
US6176849B1 (en) * | 1999-05-21 | 2001-01-23 | Scimed Life Systems, Inc. | Hydrophilic lubricity coating for medical devices comprising a hydrophobic top coat |
US6846317B1 (en) * | 1999-06-14 | 2005-01-25 | Aln | Kit for removing a blood vessel filter |
US6179859B1 (en) * | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
US6179861B1 (en) * | 1999-07-30 | 2001-01-30 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US20020022858A1 (en) * | 1999-07-30 | 2002-02-21 | Demond Jackson F. | Vascular device for emboli removal having suspension strut and methods of use |
US6346116B1 (en) * | 1999-08-03 | 2002-02-12 | Medtronic Ave, Inc. | Distal protection device |
US6168579B1 (en) * | 1999-08-04 | 2001-01-02 | Scimed Life Systems, Inc. | Filter flush system and methods of use |
US6673090B2 (en) * | 1999-08-04 | 2004-01-06 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue |
US6348056B1 (en) * | 1999-08-06 | 2002-02-19 | Scimed Life Systems, Inc. | Medical retrieval device with releasable retrieval basket |
US6843798B2 (en) * | 1999-08-27 | 2005-01-18 | Ev3 Inc. | Slideable vascular filter |
US6187025B1 (en) * | 1999-09-09 | 2001-02-13 | Noble-Met, Ltd. | Vascular filter |
US6511497B1 (en) * | 1999-09-14 | 2003-01-28 | Cormedics Gmbh | Vascular filter system |
US6340364B2 (en) * | 1999-10-22 | 2002-01-22 | Nozomu Kanesaka | Vascular filtering device |
US6171328B1 (en) * | 1999-11-09 | 2001-01-09 | Embol-X, Inc. | Intravascular catheter filter with interlocking petal design and methods of use |
US6676683B1 (en) * | 1999-11-09 | 2004-01-13 | Edwards Lifescience Corporation | Intravascular catheter filter with interlocking petal design and methods of use |
US20060015139A1 (en) * | 1999-11-15 | 2006-01-19 | Ross Tsugita | Guidewire filter and methods of use |
US6846316B2 (en) * | 1999-12-10 | 2005-01-25 | Scimed Life Systems, Inc. | Systems and methods for detaching a covering from an implantable medical device |
US20030028238A1 (en) * | 1999-12-30 | 2003-02-06 | Burkett David H. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
US6511503B1 (en) * | 1999-12-30 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
US6517550B1 (en) * | 2000-02-02 | 2003-02-11 | Board Of Regents, The University Of Texas System | Foreign body retrieval device |
US20030010686A1 (en) * | 2000-02-18 | 2003-01-16 | Yoshiyuki Sawada | Apparatus for producing coagulant and water clarification apparatus using the same |
US6514273B1 (en) * | 2000-03-22 | 2003-02-04 | Endovascular Technologies, Inc. | Device for removal of thrombus through physiological adhesion |
US6520978B1 (en) * | 2000-05-15 | 2003-02-18 | Intratherapeutics, Inc. | Emboli filter |
US20050010246A1 (en) * | 2000-06-30 | 2005-01-13 | Streeter Richard B. | Intravascular filter with debris entrapment mechanism |
US6679902B1 (en) * | 2000-07-19 | 2004-01-20 | Advanced Cardiovascular Systems, Inc. | Reduced profile delivery sheath for use in interventional procedures |
US6511496B1 (en) * | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
US20040019363A1 (en) * | 2000-10-05 | 2004-01-29 | Scimed Life Systems, Inc. | Filter delivery and retrieval device |
US6506203B1 (en) * | 2000-12-19 | 2003-01-14 | Advanced Cardiovascular Systems, Inc. | Low profile sheathless embolic protection system |
US20040015184A1 (en) * | 2000-12-21 | 2004-01-22 | Boyle William J. | Vessel occlusion device for embolic protection system |
US6506205B2 (en) * | 2001-02-20 | 2003-01-14 | Mark Goldberg | Blood clot filtering system |
US6840950B2 (en) * | 2001-02-20 | 2005-01-11 | Scimed Life Systems, Inc. | Low profile emboli capture device |
US6991642B2 (en) * | 2001-03-06 | 2006-01-31 | Scimed Life Systems, Inc. | Wire and lock mechanism |
US20040006367A1 (en) * | 2001-06-12 | 2004-01-08 | Krik Johnson | Emboli extraction catheter and vascular filter system |
US20030004536A1 (en) * | 2001-06-29 | 2003-01-02 | Boylan John F. | Variable thickness embolic filtering devices and method of manufacturing the same |
US20030004537A1 (en) * | 2001-06-29 | 2003-01-02 | Boyle William J. | Delivery and recovery sheaths for medical devices |
US20060015141A1 (en) * | 2001-07-02 | 2006-01-19 | Linder Richard J | Methods, systems, and devices for deploying a filter from a filter device |
US20030004541A1 (en) * | 2001-07-02 | 2003-01-02 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
US20030004539A1 (en) * | 2001-07-02 | 2003-01-02 | Linder Richard J. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US20030004540A1 (en) * | 2001-07-02 | 2003-01-02 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying an embolic protection filter |
US20030009188A1 (en) * | 2001-07-02 | 2003-01-09 | Linder Richard J. | Methods, systems, and devices for deploying a filter from a filter device |
US20030023265A1 (en) * | 2001-07-13 | 2003-01-30 | Forber Simon John | Vascular protection system |
US20030015206A1 (en) * | 2001-07-18 | 2003-01-23 | Roth Noah M. | Integral vascular filter system |
US20030018354A1 (en) * | 2001-07-18 | 2003-01-23 | Roth Noah M. | Integral vascular filter system with core wire activation |
US20030032941A1 (en) * | 2001-08-13 | 2003-02-13 | Boyle William J. | Convertible delivery systems for medical devices |
US20040006366A1 (en) * | 2001-08-31 | 2004-01-08 | Huter Benjamin C. | Hinged short cage for an embolic protection device |
US20060004405A1 (en) * | 2001-10-18 | 2006-01-05 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
US6837898B2 (en) * | 2001-11-30 | 2005-01-04 | Advanced Cardiovascular Systems, Inc. | Intraluminal delivery system for an attachable treatment device |
US20050010247A1 (en) * | 2002-03-08 | 2005-01-13 | Ev3 Inc. | Distal protection devices having controllable wire motion |
US20040006365A1 (en) * | 2002-05-13 | 2004-01-08 | Salviac Limited | Embolic protection system |
US20040002730A1 (en) * | 2002-06-26 | 2004-01-01 | Denison Andy E. | Embolic filtering devices for bifurcated vessels |
US20040006361A1 (en) * | 2002-06-27 | 2004-01-08 | Boyle William J. | Support structures for embolic filtering devices |
US6989021B2 (en) * | 2002-10-31 | 2006-01-24 | Cordis Corporation | Retrievable medical filter |
US20050021075A1 (en) * | 2002-12-30 | 2005-01-27 | Bonnette Michael J. | Guidewire having deployable sheathless protective filter |
US20050004595A1 (en) * | 2003-02-27 | 2005-01-06 | Boyle William J. | Embolic filtering devices |
US20050004597A1 (en) * | 2003-04-29 | 2005-01-06 | Mcguckin James F. | Distal protection device |
US6989027B2 (en) * | 2003-04-30 | 2006-01-24 | Medtronic Vascular Inc. | Percutaneously delivered temporary valve assembly |
US20050004594A1 (en) * | 2003-07-02 | 2005-01-06 | Jeffrey Nool | Devices and methods for aspirating from filters |
US20050010245A1 (en) * | 2003-07-10 | 2005-01-13 | Lawrence Wasicek | Embolic protection filtering device |
US20060015138A1 (en) * | 2004-07-19 | 2006-01-19 | Michael Gertner | Emboli diverting devices created by microfabricated means |
US20060020285A1 (en) * | 2004-07-22 | 2006-01-26 | Volker Niermann | Method for filtering blood in a vessel with helical elements |
US20060020286A1 (en) * | 2004-07-22 | 2006-01-26 | Volker Niermann | Device for filtering blood in a vessel with helical elements |
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---|---|---|---|---|
US8142442B2 (en) | 1999-12-23 | 2012-03-27 | Abbott Laboratories | Snare |
US8137377B2 (en) | 1999-12-23 | 2012-03-20 | Abbott Laboratories | Embolic basket |
US7780694B2 (en) | 1999-12-23 | 2010-08-24 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US7918820B2 (en) | 1999-12-30 | 2011-04-05 | Advanced Cardiovascular Systems, Inc. | Device for, and method of, blocking emboli in vessels such as blood arteries |
US8845583B2 (en) | 1999-12-30 | 2014-09-30 | Abbott Cardiovascular Systems Inc. | Embolic protection devices |
US8177791B2 (en) | 2000-07-13 | 2012-05-15 | Abbott Cardiovascular Systems Inc. | Embolic protection guide wire |
US7662166B2 (en) | 2000-12-19 | 2010-02-16 | Advanced Cardiocascular Systems, Inc. | Sheathless embolic protection system |
US7931666B2 (en) | 2000-12-19 | 2011-04-26 | Advanced Cardiovascular Systems, Inc. | Sheathless embolic protection system |
US7959646B2 (en) | 2001-06-29 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Filter device for embolic protection systems |
US8016854B2 (en) | 2001-06-29 | 2011-09-13 | Abbott Cardiovascular Systems Inc. | Variable thickness embolic filtering devices and methods of manufacturing the same |
US8052712B2 (en) | 2001-07-02 | 2011-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
US7959647B2 (en) | 2001-08-30 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Self furling umbrella frame for carotid filter |
US7842064B2 (en) | 2001-08-31 | 2010-11-30 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US20050075663A1 (en) * | 2001-11-27 | 2005-04-07 | Boyle William J. | Offset proximal cage for embolic filtering devices |
US7972356B2 (en) | 2001-12-21 | 2011-07-05 | Abbott Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
US20030120303A1 (en) * | 2001-12-21 | 2003-06-26 | Boyle William J. | Flexible and conformable embolic filtering devices |
US20060195138A1 (en) * | 2002-05-06 | 2006-08-31 | Scimed Life Systems, Inc. | Perfusion guidewire in combination with a distal filter |
US7785344B2 (en) | 2002-05-06 | 2010-08-31 | Boston Scientific Scimed, Inc. | Perfusion guidewire in combination with a distal filter |
US7976560B2 (en) | 2002-09-30 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US8029530B2 (en) | 2002-09-30 | 2011-10-04 | Abbott Cardiovascular Systems Inc. | Guide wire with embolic filtering attachment |
US7815660B2 (en) | 2002-09-30 | 2010-10-19 | Advanced Cardivascular Systems, Inc. | Guide wire with embolic filtering attachment |
US7678131B2 (en) | 2002-10-31 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Single-wire expandable cages for embolic filtering devices |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US7699865B2 (en) | 2003-09-12 | 2010-04-20 | Rubicon Medical, Inc. | Actuating constraining mechanism |
US7892251B1 (en) | 2003-11-12 | 2011-02-22 | Advanced Cardiovascular Systems, Inc. | Component for delivering and locking a medical device to a guide wire |
US7879065B2 (en) | 2004-03-19 | 2011-02-01 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US7678129B1 (en) | 2004-03-19 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US8308753B2 (en) | 2004-03-19 | 2012-11-13 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US20150157443A1 (en) * | 2004-03-25 | 2015-06-11 | David L. Hauser | Method of Treating Occlusion in a Blood Vessel |
US9848975B2 (en) * | 2004-03-25 | 2017-12-26 | David L. Hauser | Method of removing a thrombus from a blood vessel |
US8623067B2 (en) | 2004-05-25 | 2014-01-07 | Covidien Lp | Methods and apparatus for luminal stenting |
US10004618B2 (en) | 2004-05-25 | 2018-06-26 | Covidien Lp | Methods and apparatus for luminal stenting |
US9295568B2 (en) | 2004-05-25 | 2016-03-29 | Covidien Lp | Methods and apparatus for luminal stenting |
US11771433B2 (en) | 2004-05-25 | 2023-10-03 | Covidien Lp | Flexible vascular occluding device |
US10765542B2 (en) | 2004-05-25 | 2020-09-08 | Covidien Lp | Methods and apparatus for luminal stenting |
US9393021B2 (en) | 2004-05-25 | 2016-07-19 | Covidien Lp | Flexible vascular occluding device |
US9801744B2 (en) | 2004-05-25 | 2017-10-31 | Covidien Lp | Methods and apparatus for luminal stenting |
US10918389B2 (en) | 2004-05-25 | 2021-02-16 | Covidien Lp | Flexible vascular occluding device |
US9125659B2 (en) | 2004-05-25 | 2015-09-08 | Covidien Lp | Flexible vascular occluding device |
US9855047B2 (en) | 2004-05-25 | 2018-01-02 | Covidien Lp | Flexible vascular occluding device |
US8398701B2 (en) | 2004-05-25 | 2013-03-19 | Covidien Lp | Flexible vascular occluding device |
US9050205B2 (en) | 2004-05-25 | 2015-06-09 | Covidien Lp | Methods and apparatus for luminal stenting |
US8628564B2 (en) | 2004-05-25 | 2014-01-14 | Covidien Lp | Methods and apparatus for luminal stenting |
US8617234B2 (en) | 2004-05-25 | 2013-12-31 | Covidien Lp | Flexible vascular occluding device |
US8382825B2 (en) | 2004-05-25 | 2013-02-26 | Covidien Lp | Flexible vascular occluding device |
US9259305B2 (en) | 2005-03-31 | 2016-02-16 | Abbott Cardiovascular Systems Inc. | Guide wire locking mechanism for rapid exchange and other catheter systems |
US8267985B2 (en) * | 2005-05-25 | 2012-09-18 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US8257421B2 (en) | 2005-05-25 | 2012-09-04 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US20160151184A1 (en) * | 2005-05-25 | 2016-06-02 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
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US20090192536A1 (en) * | 2005-05-25 | 2009-07-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
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US8273101B2 (en) | 2005-05-25 | 2012-09-25 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US10064747B2 (en) | 2005-05-25 | 2018-09-04 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US20090318947A1 (en) * | 2005-05-25 | 2009-12-24 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US9204983B2 (en) | 2005-05-25 | 2015-12-08 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US20060271153A1 (en) * | 2005-05-25 | 2006-11-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US9095343B2 (en) | 2005-05-25 | 2015-08-04 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US20090198318A1 (en) * | 2005-05-25 | 2009-08-06 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US9198666B2 (en) | 2005-05-25 | 2015-12-01 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US20060271149A1 (en) * | 2005-05-25 | 2006-11-30 | Chestnut Medical Technologies, Inc. | System and method for delivering and deploying an occluding device within a vessel |
US8236042B2 (en) | 2005-05-25 | 2012-08-07 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US9381104B2 (en) | 2005-05-25 | 2016-07-05 | Covidien Lp | System and method for delivering and deploying an occluding device within a vessel |
US8147534B2 (en) * | 2005-05-25 | 2012-04-03 | Tyco Healthcare Group Lp | System and method for delivering and deploying an occluding device within a vessel |
US20070185525A1 (en) * | 2006-02-07 | 2007-08-09 | White Bradley R | Floating on the wire filter wire |
US9610181B2 (en) | 2006-02-22 | 2017-04-04 | Covidien Lp | Stents having radiopaque mesh |
US11382777B2 (en) | 2006-02-22 | 2022-07-12 | Covidien Lp | Stents having radiopaque mesh |
US8394119B2 (en) | 2006-02-22 | 2013-03-12 | Covidien Lp | Stents having radiopaque mesh |
US9320590B2 (en) | 2006-02-22 | 2016-04-26 | Covidien Lp | Stents having radiopaque mesh |
US10433988B2 (en) | 2006-02-22 | 2019-10-08 | Covidien Lp | Stents having radiopaque mesh |
US20070219577A1 (en) * | 2006-03-20 | 2007-09-20 | Boston Scientific Scimed, Inc. | Sprayed in delivery sheath tubes |
US20070250035A1 (en) * | 2006-04-19 | 2007-10-25 | El-Nounou Fozan O | Devices and methods for intravascular drug delivery |
US8496615B2 (en) | 2007-05-31 | 2013-07-30 | Abbott Cardiovascular Systems, Inc. | Method and apparatus for delivering an agent to a kidney |
US9364586B2 (en) | 2007-05-31 | 2016-06-14 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US9149610B2 (en) | 2007-05-31 | 2015-10-06 | Abbott Cardiovascular Systems Inc. | Method and apparatus for improving delivery of an agent to a kidney |
US9108028B2 (en) | 2007-05-31 | 2015-08-18 | Abbott Cardivascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US9144509B2 (en) | 2007-05-31 | 2015-09-29 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US7867273B2 (en) | 2007-06-27 | 2011-01-11 | Abbott Laboratories | Endoprostheses for peripheral arteries and other body vessels |
EP2103263A1 (en) * | 2008-03-21 | 2009-09-23 | Nipro Corporation | Shaft for operating a blood thrombus capturing member, and blood thrombus capturing catheter |
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US20100268263A1 (en) * | 2009-04-21 | 2010-10-21 | Boston Scientific Scimed, Inc. | Embolic protection filters, filter membranes, and methods for making and using the same |
US9750518B2 (en) * | 2010-05-25 | 2017-09-05 | Access Point Technologies, Inc. | Catheter apparatus |
US20130060276A1 (en) * | 2010-05-25 | 2013-03-07 | Gordon Donald Hocking | Catheter apparatus |
US9155647B2 (en) | 2012-07-18 | 2015-10-13 | Covidien Lp | Methods and apparatus for luminal stenting |
US9877856B2 (en) | 2012-07-18 | 2018-01-30 | Covidien Lp | Methods and apparatus for luminal stenting |
US9114001B2 (en) | 2012-10-30 | 2015-08-25 | Covidien Lp | Systems for attaining a predetermined porosity of a vascular device |
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US11547414B2 (en) | 2018-08-03 | 2023-01-10 | DePuy Synthes Products, Inc. | Spiral delivery system for embolic braid |
Also Published As
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US20110029008A1 (en) | 2011-02-03 |
US7815660B2 (en) | 2010-10-19 |
US7331973B2 (en) | 2008-02-19 |
US8029530B2 (en) | 2011-10-04 |
AU2003282879A1 (en) | 2004-04-23 |
US20090131971A1 (en) | 2009-05-21 |
WO2004030575A1 (en) | 2004-04-15 |
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